./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_product26.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 279357cdff3b7ff6c36fde0d2621d7e10ac1647b .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 16:02:19,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:02:19,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:02:19,708 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:02:19,709 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:02:19,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:02:19,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:02:19,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:02:19,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:02:19,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:02:19,714 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:02:19,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:02:19,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:02:19,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:02:19,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:02:19,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:02:19,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:02:19,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:02:19,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:02:19,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:02:19,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:02:19,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:02:19,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:02:19,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:02:19,739 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:02:19,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:02:19,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:02:19,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:02:19,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:02:19,748 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:02:19,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:02:19,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:02:19,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:02:19,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:02:19,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:02:19,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:02:19,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:02:19,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:02:19,750 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:02:19,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:02:19,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:02:19,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:02:19,777 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:02:19,777 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:02:19,778 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:02:19,778 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:02:19,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:02:19,780 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:02:19,780 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:02:19,780 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:02:19,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:02:19,780 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:02:19,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:02:19,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:02:19,781 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:02:19,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:02:19,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:02:19,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:02:19,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:02:19,783 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:02:19,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:02:19,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:02:19,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:02:19,785 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:02:19,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 279357cdff3b7ff6c36fde0d2621d7e10ac1647b [2021-08-27 16:02:20,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:02:20,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:02:20,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:02:20,046 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:02:20,046 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:02:20,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2021-08-27 16:02:20,098 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a791763/b7d2b33c9bcf4a6ab2d1962724483c25/FLAGbd39141c2 [2021-08-27 16:02:20,534 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:02:20,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product26.cil.c [2021-08-27 16:02:20,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a791763/b7d2b33c9bcf4a6ab2d1962724483c25/FLAGbd39141c2 [2021-08-27 16:02:20,555 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a791763/b7d2b33c9bcf4a6ab2d1962724483c25 [2021-08-27 16:02:20,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:02:20,559 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:02:20,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:20,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:02:20,563 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:02:20,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ce2927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20, skipping insertion in model container [2021-08-27 16:02:20,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:02:20,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:02:20,781 WARN L228 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_product26.cil.c[5102,5115] [2021-08-27 16:02:20,839 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:20,849 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:02:20,864 WARN L228 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_product26.cil.c[5102,5115] [2021-08-27 16:02:20,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:02:20,905 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:02:20,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20 WrapperNode [2021-08-27 16:02:20,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:02:20,906 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:20,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:02:20,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:02:20,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:02:20,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:02:20,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:02:20,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:02:20,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:02:20,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:02:20,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:02:20,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:02:20,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (1/1) ... [2021-08-27 16:02:20,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:02:20,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:02:20,999 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) [2021-08-27 16:02:21,003 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 [2021-08-27 16:02:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:02:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:02:21,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:02:21,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:02:21,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:02:21,592 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-08-27 16:02:21,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:21 BoogieIcfgContainer [2021-08-27 16:02:21,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:02:21,594 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:02:21,594 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:02:21,596 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:02:21,596 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:21,596 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:02:20" (1/3) ... [2021-08-27 16:02:21,597 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@308386d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:21, skipping insertion in model container [2021-08-27 16:02:21,597 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:21,597 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:02:20" (2/3) ... [2021-08-27 16:02:21,598 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@308386d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:02:21, skipping insertion in model container [2021-08-27 16:02:21,598 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:02:21,598 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:21" (3/3) ... [2021-08-27 16:02:21,598 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product26.cil.c [2021-08-27 16:02:21,622 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:02:21,622 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:02:21,622 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:02:21,622 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:02:21,622 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:02:21,623 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:02:21,623 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:02:21,623 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:02:21,631 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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) [2021-08-27 16:02:21,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:02:21,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:21,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:21,649 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:21,649 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:21,649 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:02:21,650 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 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) [2021-08-27 16:02:21,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-08-27 16:02:21,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:21,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:21,664 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:21,664 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:21,672 INFO L791 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 46#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 59#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 68#L75true main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 12#L210true assume 0 != main_~tmp~1; 33#L185true ~methAndRunningLastTime~0 := 0; 5#L89true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 9#L100-1true [2021-08-27 16:02:21,673 INFO L793 eck$LassoCheckResult]: Loop: 9#L100-1true assume !false; 26#L884true assume test_~splverifierCounter~0 < 4; 63#L885true test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 14#L893true assume !(0 != test_~tmp~8); 72#L893-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 40#L903true assume !(0 != test_~tmp___0~2); 55#L903-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 58#L913true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 28#L921-2true assume !(0 != ~pumpRunning~0); 25#L702true assume !(0 != ~systemActive~0); 54#L709true havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 37#L271true __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 66#L100true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 9#L100-1true [2021-08-27 16:02:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:21,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:02:21,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:21,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704752919] [2021-08-27 16:02:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:21,685 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:21,875 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:21,987 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:21,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:21,989 INFO L82 PathProgramCache]: Analyzing trace with hash 3553547, now seen corresponding path program 1 times [2021-08-27 16:02:21,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:21,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417985610] [2021-08-27 16:02:21,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:21,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:02:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:02:22,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:02:22,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417985610] [2021-08-27 16:02:22,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417985610] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:02:22,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:02:22,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:02:22,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686958070] [2021-08-27 16:02:22,059 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 16:02:22,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:02:22,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 16:02:22,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 16:02:22,072 INFO L87 Difference]: Start difference. First operand has 76 states, 75 states have (on average 1.5333333333333334) internal successors, (115), 75 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-08-27 16:02:22,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:02:22,102 INFO L93 Difference]: Finished difference Result 76 states and 105 transitions. [2021-08-27 16:02:22,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 16:02:22,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 76 states and 105 transitions. [2021-08-27 16:02:22,112 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:02:22,115 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 76 states to 69 states and 97 transitions. [2021-08-27 16:02:22,116 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 69 [2021-08-27 16:02:22,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 69 [2021-08-27 16:02:22,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 69 states and 97 transitions. [2021-08-27 16:02:22,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:02:22,118 INFO L681 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:02:22,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states and 97 transitions. [2021-08-27 16:02:22,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-08-27 16:02:22,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 68 states have internal predecessors, (97), 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) [2021-08-27 16:02:22,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 97 transitions. [2021-08-27 16:02:22,141 INFO L704 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:02:22,141 INFO L587 BuchiCegarLoop]: Abstraction has 69 states and 97 transitions. [2021-08-27 16:02:22,141 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:02:22,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 97 transitions. [2021-08-27 16:02:22,144 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-08-27 16:02:22,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:02:22,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:02:22,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:22,145 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:02:22,146 INFO L791 eck$LassoCheckResult]: Stem: 228#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string14.base, #t~string14.offset, 1);call write~init~int(77, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(101, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(116, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(104, #t~string14.base, 4 + #t~string14.offset, 1);call write~init~int(58, #t~string14.base, 5 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 6 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string16.base, #t~string16.offset, 1);call write~init~int(82, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(73, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(84, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 4 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(75, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string20.base, #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 1 + #t~string20.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(30);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(9);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(21);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 222#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~2, main_~tmp~1;havoc main_~retValue_acc~2;havoc main_~tmp~1; 223#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 227#L75 main_#t~ret10 := valid_product_#res;main_~tmp~1 := main_#t~ret10;havoc main_#t~ret10; 177#L210 assume 0 != main_~tmp~1; 178#L185 ~methAndRunningLastTime~0 := 0; 163#L89 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 164#L100-1 [2021-08-27 16:02:22,146 INFO L793 eck$LassoCheckResult]: Loop: 164#L100-1 assume !false; 171#L884 assume test_~splverifierCounter~0 < 4; 196#L885 test_~tmp~8 := test_#t~nondet76;havoc test_#t~nondet76; 181#L893 assume !(0 != test_~tmp~8); 183#L893-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 213#L903 assume !(0 != test_~tmp___0~2); 206#L903-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 226#L913 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 197#L921-2 assume !(0 != ~pumpRunning~0); 166#L702 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 195#L734 assume !(0 != ~pumpRunning~0); 202#L709 havoc __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_#t~ret9, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 210#L271 __utac_acc__Specification2_spec__2_#t~ret8 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret8;havoc __utac_acc__Specification2_spec__2_#t~ret8; 211#L100 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 164#L100-1 [2021-08-27 16:02:22,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:22,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:02:22,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:22,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867949014] [2021-08-27 16:02:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:22,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,192 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:22,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:22,246 INFO L82 PathProgramCache]: Analyzing trace with hash 83166849, now seen corresponding path program 1 times [2021-08-27 16:02:22,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:22,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148672783] [2021-08-27 16:02:22,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:22,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,251 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,264 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:02:22,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:02:22,267 INFO L82 PathProgramCache]: Analyzing trace with hash 145554759, now seen corresponding path program 1 times [2021-08-27 16:02:22,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:02:22,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456101557] [2021-08-27 16:02:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:02:22,268 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:02:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,302 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:02:22,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:02:22,341 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:03:01,889 WARN L207 SmtUtils]: Spent 39.42 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:03:42,277 WARN L207 SmtUtils]: Spent 19.99 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:03:42,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:03:42 BoogieIcfgContainer [2021-08-27 16:03:42,387 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:03:42,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:03:42,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:03:42,388 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:03:42,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:02:21" (3/4) ... [2021-08-27 16:03:42,390 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:03:42,415 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:03:42,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:03:42,417 INFO L168 Benchmark]: Toolchain (without parser) took 81857.75 ms. Allocated memory was 58.7 MB in the beginning and 90.2 MB in the end (delta: 31.5 MB). Free memory was 36.2 MB in the beginning and 42.1 MB in the end (delta: -6.0 MB). Peak memory consumption was 26.0 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,417 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:03:42,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.00 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 33.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.16 ms. Allocated memory is still 58.7 MB. Free memory was 33.4 MB in the beginning and 30.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,418 INFO L168 Benchmark]: Boogie Preprocessor took 20.13 ms. Allocated memory is still 58.7 MB. Free memory was 30.5 MB in the beginning and 28.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,419 INFO L168 Benchmark]: RCFGBuilder took 623.95 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 37.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,419 INFO L168 Benchmark]: BuchiAutomizer took 80793.12 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 45.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,419 INFO L168 Benchmark]: Witness Printer took 29.04 ms. Allocated memory is still 90.2 MB. Free memory was 44.2 MB in the beginning and 42.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:03:42,421 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 39.4 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.00 ms. Allocated memory is still 58.7 MB. Free memory was 36.0 MB in the beginning and 33.6 MB in the end (delta: 2.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.16 ms. Allocated memory is still 58.7 MB. Free memory was 33.4 MB in the beginning and 30.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.13 ms. Allocated memory is still 58.7 MB. Free memory was 30.5 MB in the beginning and 28.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 623.95 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 28.3 MB in the beginning and 37.6 MB in the end (delta: -9.3 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 80793.12 ms. Allocated memory was 71.3 MB in the beginning and 90.2 MB in the end (delta: 18.9 MB). Free memory was 37.3 MB in the beginning and 45.2 MB in the end (delta: -7.9 MB). Peak memory consumption was 41.2 MB. Max. memory is 16.1 GB. * Witness Printer took 29.04 ms. Allocated memory is still 90.2 MB. Free memory was 44.2 MB in the beginning and 42.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 3 locations. The remainder module has 69 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 80.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 80.6s. 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 15.0ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 102 SDtfs, 102 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 883]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=658} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=658, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=672, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49e38ffd=0, NULL=673, methaneLevelCritical=0, NULL=682, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ee93e64=0, NULL=681, tmp=0, tmp___1=0, NULL=0, NULL=0, NULL=659, NULL=680, cleanupTimeShifts=4, NULL=665, NULL=668, NULL=662, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36a32da=0, NULL=670, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46ae454=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5df3236f=74, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@355ab736=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c13d5b9=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=686, NULL=685, NULL=0, NULL=0, NULL=675, NULL=0, NULL=683, \result=1, NULL=661, head=0, pumpRunning=0, NULL=678, \result=0, NULL=669, NULL=679, NULL=674, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e4dc5d9=0, NULL=684, tmp___0=0, NULL=0, NULL=0, NULL=663, retValue_acc=1, tmp___2=74, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=664, NULL=671, head=0, tmp=0, NULL=0, NULL=0, NULL=667, tmp=0, NULL=660, NULL=666, NULL=677, NULL=0, NULL=676} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int methAndRunningLastTime ; [L122] int cleanupTimeShifts = 4; [L228] int waterLevel = 1; [L229] int methaneLevelCritical = 0; [L495] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L695] int pumpRunning = 0; [L696] int systemActive = 1; [L201] int retValue_acc ; [L202] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L208] tmp = valid_product() [L210] COND TRUE \read(tmp) [L88] methAndRunningLastTime = 0 [L874] int splverifierCounter ; [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L878] int tmp___2 ; [L881] splverifierCounter = 0 Loop: [L883] COND TRUE 1 [L885] COND TRUE splverifierCounter < 4 [L891] tmp = __VERIFIER_nondet_int() [L893] COND FALSE !(\read(tmp)) [L901] tmp___0 = __VERIFIER_nondet_int() [L903] COND FALSE !(\read(tmp___0)) [L911] tmp___2 = __VERIFIER_nondet_int() [L913] COND TRUE \read(tmp___2) [L868] systemActive = 1 [L702] COND FALSE !(\read(pumpRunning)) [L709] COND TRUE \read(systemActive) [L731] int tmp ; [L734] COND FALSE !(\read(pumpRunning)) [L93] int tmp ; [L94] int tmp___0 ; [L267] int retValue_acc ; [L270] retValue_acc = methaneLevelCritical [L271] return (retValue_acc); [L98] tmp = isMethaneLevelCritical() [L100] COND FALSE !(\read(tmp)) [L116] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:03:42,466 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...