./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 22:33:19,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 22:33:19,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 22:33:19,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 22:33:19,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 22:33:19,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 22:33:19,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 22:33:19,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 22:33:19,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 22:33:19,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 22:33:19,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 22:33:19,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 22:33:19,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 22:33:19,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 22:33:19,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 22:33:19,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 22:33:19,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 22:33:19,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 22:33:19,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 22:33:19,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 22:33:19,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 22:33:19,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 22:33:19,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 22:33:19,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 22:33:19,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 22:33:19,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 22:33:19,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 22:33:19,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 22:33:19,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 22:33:19,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 22:33:19,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 22:33:19,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 22:33:19,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 22:33:19,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 22:33:19,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 22:33:19,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 22:33:19,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 22:33:19,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 22:33:19,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 22:33:19,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 22:33:19,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 22:33:19,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-21 22:33:19,648 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 22:33:19,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 22:33:19,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 22:33:19,649 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 22:33:19,650 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 22:33:19,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 22:33:19,651 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 22:33:19,651 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 22:33:19,651 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 22:33:19,651 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 22:33:19,652 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 22:33:19,653 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 22:33:19,653 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 22:33:19,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 22:33:19,653 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 22:33:19,653 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 22:33:19,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 22:33:19,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 22:33:19,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 22:33:19,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 22:33:19,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 22:33:19,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 22:33:19,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 22:33:19,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 22:33:19,655 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 22:33:19,655 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 22:33:19,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 22:33:19,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 22:33:19,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 22:33:19,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 22:33:19,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 22:33:19,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 22:33:19,658 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 22:33:19,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a0a9a5f1521df25ea0ff390c35c7186e45318cd30c225704d83030e156744fb [2021-12-21 22:33:19,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 22:33:19,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 22:33:19,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 22:33:19,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 22:33:19,952 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 22:33:19,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2021-12-21 22:33:20,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f13d9563/4d968cd14e884e6787d73d4bf575f281/FLAG8e1f7f8e1 [2021-12-21 22:33:20,530 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 22:33:20,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product59.cil.c [2021-12-21 22:33:20,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f13d9563/4d968cd14e884e6787d73d4bf575f281/FLAG8e1f7f8e1 [2021-12-21 22:33:21,046 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f13d9563/4d968cd14e884e6787d73d4bf575f281 [2021-12-21 22:33:21,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 22:33:21,051 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 22:33:21,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:21,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 22:33:21,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 22:33:21,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,061 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cf2b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21, skipping insertion in model container [2021-12-21 22:33:21,062 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,068 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 22:33:21,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 22:33:21,290 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_spec1_product59.cil.c[3645,3658] [2021-12-21 22:33:21,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:21,418 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 22:33:21,449 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_spec1_product59.cil.c[3645,3658] [2021-12-21 22:33:21,490 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 22:33:21,514 INFO L208 MainTranslator]: Completed translation [2021-12-21 22:33:21,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21 WrapperNode [2021-12-21 22:33:21,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 22:33:21,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:21,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 22:33:21,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 22:33:21,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,614 INFO L137 Inliner]: procedures = 57, calls = 158, calls flagged for inlining = 55, calls inlined = 97, statements flattened = 732 [2021-12-21 22:33:21,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 22:33:21,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 22:33:21,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 22:33:21,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 22:33:21,623 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 22:33:21,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 22:33:21,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 22:33:21,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 22:33:21,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (1/1) ... [2021-12-21 22:33:21,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 22:33:21,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 22:33:21,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-21 22:33:21,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-21 22:33:21,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 22:33:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 22:33:21,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 22:33:21,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 22:33:21,814 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 22:33:21,816 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 22:33:22,159 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 22:33:22,166 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 22:33:22,166 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 22:33:22,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:22 BoogieIcfgContainer [2021-12-21 22:33:22,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 22:33:22,175 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 22:33:22,175 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 22:33:22,178 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 22:33:22,179 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:22,179 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 10:33:21" (1/3) ... [2021-12-21 22:33:22,180 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c35b460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:22, skipping insertion in model container [2021-12-21 22:33:22,180 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:22,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:33:21" (2/3) ... [2021-12-21 22:33:22,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c35b460 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 10:33:22, skipping insertion in model container [2021-12-21 22:33:22,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 22:33:22,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:22" (3/3) ... [2021-12-21 22:33:22,182 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product59.cil.c [2021-12-21 22:33:22,230 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 22:33:22,230 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 22:33:22,230 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 22:33:22,231 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 22:33:22,231 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 22:33:22,231 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 22:33:22,231 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 22:33:22,232 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 22:33:22,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:22,291 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2021-12-21 22:33:22,292 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:22,292 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:22,297 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:22,297 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:22,297 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 22:33:22,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:22,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2021-12-21 22:33:22,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:22,312 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:22,313 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:22,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:22,323 INFO L791 eck$LassoCheckResult]: Stem: 169#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 61#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 165#L892true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 79#L885true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 120#L900true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 127#L987true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 96#L964true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 114#L211-2true [2021-12-21 22:33:22,324 INFO L793 eck$LassoCheckResult]: Loop: 114#L211-2true assume !false; 95#L212true assume test_~splverifierCounter~0#1 < 4; 177#L213true test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 115#L221true assume !(0 != test_~tmp~1#1); 86#L221-2true test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 110#L231true assume !(0 != test_~tmp___0~1#1); 9#L231-2true test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 48#L241true assume 0 != test_~tmp___2~0#1; 102#L247-2true assume { :begin_inline_timeShift } true; 189#L278true assume !(0 != ~pumpRunning~0); 7#L278-2true assume !(0 != ~systemActive~0); 81#L285-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 116#L101-2true __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 150#L171true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 47#L171-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 14#L295true assume { :end_inline_timeShift } true; 114#L211-2true [2021-12-21 22:33:22,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:22,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-21 22:33:22,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:22,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522084797] [2021-12-21 22:33:22,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:22,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:22,440 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:22,487 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:22,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1086892900, now seen corresponding path program 1 times [2021-12-21 22:33:22,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:22,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668942111] [2021-12-21 22:33:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:22,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:22,498 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:22,506 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:22,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1852655320, now seen corresponding path program 1 times [2021-12-21 22:33:22,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:22,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326464346] [2021-12-21 22:33:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:22,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:22,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:22,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:22,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326464346] [2021-12-21 22:33:22,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326464346] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:22,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:22,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 22:33:22,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726382425] [2021-12-21 22:33:22,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:22,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 22:33:22,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-21 22:33:22,807 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:22,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:22,947 INFO L93 Difference]: Finished difference Result 431 states and 563 transitions. [2021-12-21 22:33:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 22:33:22,953 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 431 states and 563 transitions. [2021-12-21 22:33:22,957 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 279 [2021-12-21 22:33:22,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 431 states to 401 states and 533 transitions. [2021-12-21 22:33:22,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 401 [2021-12-21 22:33:22,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 401 [2021-12-21 22:33:22,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 401 states and 533 transitions. [2021-12-21 22:33:22,968 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:22,968 INFO L681 BuchiCegarLoop]: Abstraction has 401 states and 533 transitions. [2021-12-21 22:33:22,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states and 533 transitions. [2021-12-21 22:33:23,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 229. [2021-12-21 22:33:23,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 1.3275109170305677) internal successors, (304), 228 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:23,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 304 transitions. [2021-12-21 22:33:23,008 INFO L704 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2021-12-21 22:33:23,008 INFO L587 BuchiCegarLoop]: Abstraction has 229 states and 304 transitions. [2021-12-21 22:33:23,009 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 22:33:23,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 304 transitions. [2021-12-21 22:33:23,012 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2021-12-21 22:33:23,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:23,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:23,015 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:23,015 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:23,015 INFO L791 eck$LassoCheckResult]: Stem: 810#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 728#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 729#L892 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 748#L885 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 749#L900 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 786#L987 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 767#L964 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 660#L211-2 [2021-12-21 22:33:23,016 INFO L793 eck$LassoCheckResult]: Loop: 660#L211-2 assume !false; 765#L212 assume test_~splverifierCounter~0#1 < 4; 766#L213 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 782#L221 assume !(0 != test_~tmp~1#1); 756#L221-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 757#L231 assume !(0 != test_~tmp___0~1#1); 650#L231-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 651#L241 assume 0 != test_~tmp___2~0#1; 712#L247-2 assume { :begin_inline_timeShift } true; 773#L278 assume !(0 != ~pumpRunning~0); 645#L278-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 646#L336 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 647#L310-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 648#L302-3 assume { :end_inline_processEnvironment__wrappee__base } true; 639#L310-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 640#L336-1 assume { :end_inline_processEnvironment } true; 661#L285-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 751#L101-2 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 783#L171 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 653#L171-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 659#L295 assume { :end_inline_timeShift } true; 660#L211-2 [2021-12-21 22:33:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:23,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-21 22:33:23,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516352385] [2021-12-21 22:33:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:23,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:23,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,067 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:23,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,104 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:23,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:23,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1122654490, now seen corresponding path program 1 times [2021-12-21 22:33:23,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:23,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127754540] [2021-12-21 22:33:23,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:23,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 22:33:23,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 22:33:23,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 22:33:23,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127754540] [2021-12-21 22:33:23,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127754540] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 22:33:23,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 22:33:23,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-21 22:33:23,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405469746] [2021-12-21 22:33:23,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 22:33:23,131 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-21 22:33:23,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 22:33:23,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-21 22:33:23,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-21 22:33:23,134 INFO L87 Difference]: Start difference. First operand 229 states and 304 transitions. cyclomatic complexity: 78 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 22:33:23,206 INFO L93 Difference]: Finished difference Result 285 states and 361 transitions. [2021-12-21 22:33:23,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-21 22:33:23,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 361 transitions. [2021-12-21 22:33:23,210 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2021-12-21 22:33:23,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 361 transitions. [2021-12-21 22:33:23,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2021-12-21 22:33:23,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2021-12-21 22:33:23,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 361 transitions. [2021-12-21 22:33:23,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 22:33:23,226 INFO L681 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2021-12-21 22:33:23,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 361 transitions. [2021-12-21 22:33:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2021-12-21 22:33:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 285 states have (on average 1.2666666666666666) internal successors, (361), 284 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 22:33:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 361 transitions. [2021-12-21 22:33:23,239 INFO L704 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2021-12-21 22:33:23,239 INFO L587 BuchiCegarLoop]: Abstraction has 285 states and 361 transitions. [2021-12-21 22:33:23,239 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-21 22:33:23,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 361 transitions. [2021-12-21 22:33:23,242 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2021-12-21 22:33:23,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 22:33:23,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 22:33:23,244 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:23,244 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 22:33:23,245 INFO L791 eck$LassoCheckResult]: Stem: 1341#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;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4; 1247#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1248#L892 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1274#L885 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~12#1;havoc valid_product_~retValue_acc~12#1;valid_product_~retValue_acc~12#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~12#1; 1275#L900 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1313#L987 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1298#L964 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~splverifierCounter~0#1, test_~tmp~1#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~1#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1179#L211-2 [2021-12-21 22:33:23,246 INFO L793 eck$LassoCheckResult]: Loop: 1179#L211-2 assume !false; 1291#L212 assume test_~splverifierCounter~0#1 < 4; 1292#L213 test_~tmp~1#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1310#L221 assume !(0 != test_~tmp~1#1); 1282#L221-2 test_~tmp___0~1#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1283#L231 assume !(0 != test_~tmp___0~1#1); 1169#L231-2 test_~tmp___2~0#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1170#L241 assume 0 != test_~tmp___2~0#1; 1230#L247-2 assume { :begin_inline_timeShift } true; 1350#L278 assume !(0 != ~pumpRunning~0); 1165#L278-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1166#L336 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1167#L310-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1168#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1214#L146-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 1215#L456-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1220#L456-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1337#L462-1 processEnvironment__wrappee__highWaterSensor_#t~ret15#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret15#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15#1; 1232#L314-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1233#L302-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1161#L310-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1162#L336-1 assume { :end_inline_processEnvironment } true; 1180#L285-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret9#1, __utac_acc__Specification1_spec__1_#t~ret10#1, __utac_acc__Specification1_spec__1_~tmp~0#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~0#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1276#L101-2 __utac_acc__Specification1_spec__1_#t~ret9#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~0#1 := __utac_acc__Specification1_spec__1_#t~ret9#1;havoc __utac_acc__Specification1_spec__1_#t~ret9#1; 1311#L171 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0#1); 1172#L171-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1178#L295 assume { :end_inline_timeShift } true; 1179#L211-2 [2021-12-21 22:33:23,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:23,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-21 22:33:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:23,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228182638] [2021-12-21 22:33:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:23,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,280 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:23,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:23,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1041206770, now seen corresponding path program 1 times [2021-12-21 22:33:23,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:23,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798717866] [2021-12-21 22:33:23,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:23,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:23,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,301 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,308 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:23,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 22:33:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1416494510, now seen corresponding path program 1 times [2021-12-21 22:33:23,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 22:33:23,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944754405] [2021-12-21 22:33:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 22:33:23,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 22:33:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,325 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 22:33:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 22:33:23,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 22:33:26,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 10:33:26 BoogieIcfgContainer [2021-12-21 22:33:26,335 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 22:33:26,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 22:33:26,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 22:33:26,338 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 22:33:26,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:33:22" (3/4) ... [2021-12-21 22:33:26,341 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-21 22:33:26,407 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 22:33:26,407 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 22:33:26,408 INFO L158 Benchmark]: Toolchain (without parser) took 5356.64ms. Allocated memory was 88.1MB in the beginning and 130.0MB in the end (delta: 41.9MB). Free memory was 54.9MB in the beginning and 90.5MB in the end (delta: -35.7MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,409 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 22:33:26,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.88ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.7MB in the beginning and 73.7MB in the end (delta: -19.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.28ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,411 INFO L158 Benchmark]: Boogie Preprocessor took 35.05ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,411 INFO L158 Benchmark]: RCFGBuilder took 523.22ms. Allocated memory is still 107.0MB. Free memory was 66.9MB in the beginning and 43.2MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,411 INFO L158 Benchmark]: BuchiAutomizer took 4160.26ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 43.2MB in the beginning and 93.7MB in the end (delta: -50.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,412 INFO L158 Benchmark]: Witness Printer took 71.63ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 90.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-21 22:33:26,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 459.88ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 54.7MB in the beginning and 73.7MB in the end (delta: -19.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.28ms. Allocated memory is still 107.0MB. Free memory was 73.7MB in the beginning and 69.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.05ms. Allocated memory is still 107.0MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 523.22ms. Allocated memory is still 107.0MB. Free memory was 66.9MB in the beginning and 43.2MB in the end (delta: 23.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 4160.26ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 43.2MB in the beginning and 93.7MB in the end (delta: -50.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 71.63ms. Allocated memory is still 130.0MB. Free memory was 93.7MB in the beginning and 90.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 285 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 172 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 285 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1102 mSDsluCounter, 1584 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1114 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 470 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 211]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a18b5c2=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6169def3=0, tmp___0=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e15fc07=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75fcebac=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64abfa45=0, \result=0, retValue_acc=0, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a4efe4c=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fbffad5=0, tmp=1, tmp=1, tmp___2=29, tmp=0, cleanupTimeShifts=4, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, tmp=0, waterLevel=1, systemActive=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f5fdc9f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@164592c8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e3ac7b4=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 211]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L271] int pumpRunning = 0; [L272] int systemActive = 1; [L670] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L905] int cleanupTimeShifts = 4; [L978] int retValue_acc ; [L979] int tmp ; [L983] FCALL select_helpers() [L984] FCALL select_features() [L985] CALL, EXPR valid_product() [L896] int retValue_acc ; [L899] retValue_acc = 1 [L900] return (retValue_acc); [L985] RET, EXPR valid_product() [L985] tmp = valid_product() [L987] COND TRUE \read(tmp) [L989] FCALL setup() [L990] CALL runTest() [L972] CALL test() [L202] int splverifierCounter ; [L203] int tmp ; [L204] int tmp___0 ; [L205] int tmp___1 ; [L206] int tmp___2 ; [L209] splverifierCounter = 0 Loop: [L211] COND TRUE 1 [L213] COND TRUE splverifierCounter < 4 [L219] tmp = __VERIFIER_nondet_int() [L221] COND FALSE !(\read(tmp)) [L229] tmp___0 = __VERIFIER_nondet_int() [L231] COND FALSE !(\read(tmp___0)) [L239] tmp___2 = __VERIFIER_nondet_int() [L241] COND TRUE \read(tmp___2) [L256] CALL timeShift() [L278] COND FALSE !(\read(pumpRunning)) [L285] COND TRUE \read(systemActive) [L287] CALL processEnvironment() [L333] int tmp ; [L336] COND FALSE !(\read(pumpRunning)) [L351] CALL processEnvironment__wrappee__highWaterSensor() [L307] int tmp ; [L310] COND TRUE ! pumpRunning [L312] CALL, EXPR isHighWaterLevel() [L448] int retValue_acc ; [L449] int tmp ; [L450] int tmp___0 ; [L454] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L454] RET, EXPR isHighWaterSensorDry() [L454] tmp = isHighWaterSensorDry() [L456] COND TRUE \read(tmp) [L457] tmp___0 = 0 [L461] retValue_acc = tmp___0 [L462] return (retValue_acc); [L312] RET, EXPR isHighWaterLevel() [L312] tmp = isHighWaterLevel() [L314] COND FALSE !(\read(tmp)) [L320] FCALL processEnvironment__wrappee__base() [L351] RET processEnvironment__wrappee__highWaterSensor() [L287] RET processEnvironment() [L293] CALL __utac_acc__Specification1_spec__1() [L164] int tmp ; [L165] int tmp___0 ; [L169] CALL, EXPR isMethaneLevelCritical() [L97] int retValue_acc ; [L100] retValue_acc = methaneLevelCritical [L101] return (retValue_acc); [L169] RET, EXPR isMethaneLevelCritical() [L169] tmp = isMethaneLevelCritical() [L171] COND FALSE !(\read(tmp)) [L293] RET __utac_acc__Specification1_spec__1() [L256] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-21 22:33:26,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)