./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product30.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_spec1_product30.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 ebcff49133dade640f52684ce96120818f74fe08 ................................................................................................................................................................................................................................................................................................................................................................................. 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 15:55:10,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:55:10,754 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:55:10,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:55:10,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:55:10,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:55:10,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:55:10,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:55:10,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:55:10,790 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:55:10,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:55:10,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:55:10,791 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:55:10,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:55:10,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:55:10,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:55:10,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:55:10,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:55:10,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:55:10,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:55:10,805 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:55:10,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:55:10,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:55:10,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:55:10,811 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:55:10,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:55:10,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:55:10,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:55:10,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:55:10,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:55:10,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:55:10,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:55:10,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:55:10,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:55:10,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:55:10,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:55:10,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:55:10,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:55:10,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:55:10,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:55:10,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:55:10,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:55:10,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:55:10,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:55:10,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:55:10,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:55:10,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:55:10,860 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:55:10,861 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:55:10,861 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:55:10,861 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:55:10,861 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:55:10,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:55:10,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:55:10,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:55:10,864 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:55:10,864 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:55:10,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:55:10,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:55:10,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:55:10,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:55:10,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:55:10,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:55:10,866 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:55:10,866 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ebcff49133dade640f52684ce96120818f74fe08 [2021-08-27 15:55:11,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:55:11,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:55:11,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:55:11,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:55:11,132 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:55:11,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2021-08-27 15:55:11,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1c73b18/1bc1978f1b37436a9a1388fe8dcac8d6/FLAGf564621bc [2021-08-27 15:55:11,587 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:55:11,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product30.cil.c [2021-08-27 15:55:11,597 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1c73b18/1bc1978f1b37436a9a1388fe8dcac8d6/FLAGf564621bc [2021-08-27 15:55:11,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1c73b18/1bc1978f1b37436a9a1388fe8dcac8d6 [2021-08-27 15:55:11,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:55:11,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:55:11,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:55:11,614 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:55:11,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:55:11,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:11,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c1f118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11, skipping insertion in model container [2021-08-27 15:55:11,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:11,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:55:11,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:55:11,887 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_spec1_product30.cil.c[14037,14050] [2021-08-27 15:55:11,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:55:11,903 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:55:11,942 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_spec1_product30.cil.c[14037,14050] [2021-08-27 15:55:11,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:55:11,964 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:55:11,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11 WrapperNode [2021-08-27 15:55:11,965 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:55:11,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:55:11,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:55:11,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:55:11,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:11,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:55:12,031 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:55:12,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:55:12,031 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:55:12,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:55:12,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:55:12,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:55:12,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:55:12,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (1/1) ... [2021-08-27 15:55:12,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:55:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:55:12,102 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 15:55:12,104 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 15:55:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:55:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:55:12,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:55:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:55:12,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:55:12,711 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-08-27 15:55:12,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:12 BoogieIcfgContainer [2021-08-27 15:55:12,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:55:12,713 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:55:12,713 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:55:12,715 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:55:12,715 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:12,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:55:11" (1/3) ... [2021-08-27 15:55:12,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5097993f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:55:12, skipping insertion in model container [2021-08-27 15:55:12,716 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:12,716 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:55:11" (2/3) ... [2021-08-27 15:55:12,716 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5097993f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:55:12, skipping insertion in model container [2021-08-27 15:55:12,717 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:55:12,717 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:12" (3/3) ... [2021-08-27 15:55:12,717 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product30.cil.c [2021-08-27 15:55:12,741 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:55:12,742 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:55:12,742 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:55:12,742 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:55:12,742 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:55:12,742 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:55:12,742 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:55:12,742 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:55:12,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 15:55:12,765 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:55:12,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:12,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:12,770 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:12,770 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:12,770 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:55:12,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 15:55:12,775 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-08-27 15:55:12,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:12,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:12,775 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:12,775 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:12,778 INFO L791 eck$LassoCheckResult]: Stem: 93#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 33#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 65#L534true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 4#L542true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 97#L132true assume 0 != main_~tmp~0; 13#L105true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 44#L866-1true [2021-08-27 15:55:12,779 INFO L793 eck$LassoCheckResult]: Loop: 44#L866-1true assume !false; 53#L895true assume test_~splverifierCounter~0 < 4; 5#L896true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 16#L904true assume !(0 != test_~tmp~9); 98#L904-1true test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 55#L914true assume !(0 != test_~tmp___0~2); 39#L914-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 64#L924true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 69#L932-2true assume !(0 != ~pumpRunning~0); 36#L662true assume !(0 != ~systemActive~0); 86#L669true havoc __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 24#L595-1true __utac_acc__Specification1_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret75;havoc __utac_acc__Specification1_spec__1_#t~ret75; 8#L866true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 44#L866-1true [2021-08-27 15:55:12,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:12,782 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-27 15:55:12,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:12,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506295599] [2021-08-27 15:55:12,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:12,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:12,939 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,023 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:13,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:13,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344189, now seen corresponding path program 1 times [2021-08-27 15:55:13,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:13,027 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489770976] [2021-08-27 15:55:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:13,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:55:13,068 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 15:55:13,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:55:13,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489770976] [2021-08-27 15:55:13,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489770976] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:55:13,069 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:55:13,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:55:13,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454910083] [2021-08-27 15:55:13,072 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-27 15:55:13,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:55:13,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:55:13,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:55:13,083 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 15:55:13,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:55:13,112 INFO L93 Difference]: Finished difference Result 102 states and 143 transitions. [2021-08-27 15:55:13,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:55:13,114 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 143 transitions. [2021-08-27 15:55:13,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:55:13,123 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-08-27 15:55:13,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-08-27 15:55:13,127 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-08-27 15:55:13,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-08-27 15:55:13,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:55:13,129 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:13,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-08-27 15:55:13,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-08-27 15:55:13,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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 15:55:13,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-08-27 15:55:13,159 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:13,159 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-08-27 15:55:13,159 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:55:13,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-08-27 15:55:13,164 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-08-27 15:55:13,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:55:13,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:55:13,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-27 15:55:13,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:55:13,166 INFO L791 eck$LassoCheckResult]: Stem: 306#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(13);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string47.base, #t~string47.offset, 1);call write~init~int(77, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(101, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(116, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(104, #t~string47.base, 4 + #t~string47.offset, 1);call write~init~int(58, #t~string47.base, 5 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 6 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string49.base, #t~string49.offset, 1);call write~init~int(82, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(73, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(84, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 4 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(75, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string53.base, #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 1 + #t~string53.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 298#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 262#L534 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 219#L542 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 220#L132 assume 0 != main_~tmp~0; 260#L105 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 230#L866-1 [2021-08-27 15:55:13,166 INFO L793 eck$LassoCheckResult]: Loop: 230#L866-1 assume !false; 231#L895 assume test_~splverifierCounter~0 < 4; 221#L896 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 222#L904 assume !(0 != test_~tmp~9); 271#L904-1 test_~tmp___0~2 := test_#t~nondet78;havoc test_#t~nondet78; 233#L914 assume !(0 != test_~tmp___0~2); 234#L914-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 259#L924 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 248#L932-2 assume !(0 != ~pumpRunning~0); 272#L662 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 287#L720 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret54, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 288#L694-1 assume !(0 != ~pumpRunning~0); 266#L669 havoc __utac_acc__Specification1_spec__1_#t~ret75, __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 290#L595-1 __utac_acc__Specification1_spec__1_#t~ret75 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret75;havoc __utac_acc__Specification1_spec__1_#t~ret75; 229#L866 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 230#L866-1 [2021-08-27 15:55:13,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:13,167 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-27 15:55:13,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:13,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687616443] [2021-08-27 15:55:13,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:13,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,225 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,270 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:13,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:13,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435467, now seen corresponding path program 1 times [2021-08-27 15:55:13,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:13,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688150023] [2021-08-27 15:55:13,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:13,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,279 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:13,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:13,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:55:13,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149583, now seen corresponding path program 1 times [2021-08-27 15:55:13,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:55:13,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720879265] [2021-08-27 15:55:13,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:55:13,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:55:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,319 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:55:13,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:55:13,367 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:55:52,647 WARN L207 SmtUtils]: Spent 39.16 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-27 15:56:31,251 WARN L207 SmtUtils]: Spent 19.08 s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-27 15:56:31,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:56:31 BoogieIcfgContainer [2021-08-27 15:56:31,384 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:56:31,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:56:31,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:56:31,385 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:56:31,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:55:12" (3/4) ... [2021-08-27 15:56:31,391 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:56:31,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:56:31,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:56:31,438 INFO L168 Benchmark]: Toolchain (without parser) took 79825.51 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 36.8 MB in the beginning and 40.2 MB in the end (delta: -3.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,438 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:56:31,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.72 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 30.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.47 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 27.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,440 INFO L168 Benchmark]: Boogie Preprocessor took 40.66 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 24.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,442 INFO L168 Benchmark]: RCFGBuilder took 640.65 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 24.7 MB in the beginning and 38.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,442 INFO L168 Benchmark]: BuchiAutomizer took 78671.52 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 42.3 MB in the end (delta: -4.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,443 INFO L168 Benchmark]: Witness Printer took 52.12 ms. Allocated memory is still 83.9 MB. Free memory was 42.3 MB in the beginning and 40.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:56:31,445 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 44.0 MB. Free memory was 26.5 MB in the beginning and 26.5 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.72 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 30.6 MB in the end (delta: 5.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 64.47 ms. Allocated memory is still 54.5 MB. Free memory was 30.6 MB in the beginning and 27.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.66 ms. Allocated memory is still 54.5 MB. Free memory was 27.2 MB in the beginning and 24.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 640.65 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 24.7 MB in the beginning and 38.2 MB in the end (delta: -13.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 78671.52 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 38.2 MB in the beginning and 42.3 MB in the end (delta: -4.2 MB). Peak memory consumption was 41.0 MB. Max. memory is 16.1 GB. * Witness Printer took 52.12 ms. Allocated memory is still 83.9 MB. Free memory was 42.3 MB in the beginning and 40.2 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 78.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 78.4s. 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 21.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 140 SDtfs, 140 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.7ms 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: 894]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18431} State at position 1 is {NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=18431, NULL=0, NULL=18454, NULL=0, NULL=0, NULL=18451, NULL=18435, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4245e2eb=0, NULL=18443, NULL=0, NULL=0, NULL=0, tmp___1=0, tmp=0, NULL=18433, NULL=0, NULL=0, tmp___0=0, NULL=18449, NULL=18434, NULL=18439, cleanupTimeShifts=4, NULL=18442, NULL=18432, NULL=18448, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d403721=66, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c33ad4a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7617c2b2=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18458, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58b5e629=0, retValue_acc=0, NULL=0, NULL=18446, NULL=0, NULL=18438, \result=1, head=0, pumpRunning=0, tmp=1, NULL=18459, \result=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@261de1e2=0, NULL=0, NULL=18440, retValue_acc=1, NULL=18456, NULL=18436, NULL=0, tmp=0, NULL=0, NULL=18450, tmp___2=66, tmp___0=0, NULL=18444, NULL=18437, splverifierCounter=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@553f5032=0, \result=0, NULL=18452, NULL=18453, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17618451=0, NULL=18457, head=0, NULL=0, NULL=0, tmp=0, NULL=18441, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c836554=0, NULL=18447, NULL=18445, NULL=18455, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L315] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L552] int waterLevel = 1; [L553] int methaneLevelCritical = 0; [L654] int pumpRunning = 0; [L655] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L538] int retValue_acc ; [L541] retValue_acc = 1 [L542] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L885] int splverifierCounter ; [L886] int tmp ; [L887] int tmp___0 ; [L888] int tmp___1 ; [L889] int tmp___2 ; [L892] splverifierCounter = 0 Loop: [L894] COND TRUE 1 [L896] COND TRUE splverifierCounter < 4 [L902] tmp = __VERIFIER_nondet_int() [L904] COND FALSE !(\read(tmp)) [L912] tmp___0 = __VERIFIER_nondet_int() [L914] COND FALSE !(\read(tmp___0)) [L922] tmp___2 = __VERIFIER_nondet_int() [L924] COND TRUE \read(tmp___2) [L853] systemActive = 1 [L662] COND FALSE !(\read(pumpRunning)) [L669] COND TRUE \read(systemActive) [L717] int tmp ; [L720] COND FALSE !(\read(pumpRunning)) [L691] int tmp ; [L694] COND FALSE !(\read(pumpRunning)) [L859] int tmp ; [L860] int tmp___0 ; [L591] int retValue_acc ; [L594] retValue_acc = methaneLevelCritical [L595] return (retValue_acc); [L864] tmp = isMethaneLevelCritical() [L866] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:56:31,489 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...