./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/gj2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 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/loop-lit/gj2007.i -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 05ff204c30e7b81bf33f8a8c483906be16c1e587 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 19:41:34,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 19:41:34,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 19:41:34,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 19:41:34,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 19:41:34,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 19:41:34,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 19:41:34,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 19:41:34,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 19:41:34,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 19:41:34,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 19:41:34,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 19:41:34,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 19:41:34,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 19:41:34,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 19:41:34,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 19:41:34,876 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 19:41:34,877 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 19:41:34,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 19:41:34,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 19:41:34,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 19:41:34,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 19:41:34,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 19:41:34,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 19:41:34,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 19:41:34,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 19:41:34,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 19:41:34,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 19:41:34,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 19:41:34,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 19:41:34,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 19:41:34,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 19:41:34,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 19:41:34,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 19:41:34,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 19:41:34,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 19:41:34,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 19:41:34,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 19:41:34,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 19:41:34,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 19:41:34,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 19:41:34,903 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 19:41:34,947 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 19:41:34,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 19:41:34,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 19:41:34,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 19:41:34,950 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 19:41:34,950 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 19:41:34,950 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 19:41:34,950 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 19:41:34,951 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 19:41:34,951 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 19:41:34,951 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 19:41:34,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 19:41:34,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 19:41:34,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 19:41:34,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 19:41:34,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 19:41:34,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 19:41:34,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 19:41:34,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 19:41:34,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 19:41:34,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 19:41:34,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 19:41:34,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 19:41:34,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 19:41:34,956 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 19:41:34,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05ff204c30e7b81bf33f8a8c483906be16c1e587 [2021-07-06 19:41:35,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 19:41:35,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 19:41:35,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 19:41:35,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 19:41:35,299 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 19:41:35,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gj2007.i [2021-07-06 19:41:35,375 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80cda0f3/43f585587cf34dc48b65be3c8c6d68e2/FLAGbcdcb0d13 [2021-07-06 19:41:35,764 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 19:41:35,765 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007.i [2021-07-06 19:41:35,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80cda0f3/43f585587cf34dc48b65be3c8c6d68e2/FLAGbcdcb0d13 [2021-07-06 19:41:36,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b80cda0f3/43f585587cf34dc48b65be3c8c6d68e2 [2021-07-06 19:41:36,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 19:41:36,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 19:41:36,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 19:41:36,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 19:41:36,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 19:41:36,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,178 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e48979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36, skipping insertion in model container [2021-07-06 19:41:36,178 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 19:41:36,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 19:41:36,320 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2021-07-06 19:41:36,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:41:36,344 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 19:41:36,397 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2021-07-06 19:41:36,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 19:41:36,418 INFO L208 MainTranslator]: Completed translation [2021-07-06 19:41:36,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36 WrapperNode [2021-07-06 19:41:36,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 19:41:36,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 19:41:36,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 19:41:36,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 19:41:36,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 19:41:36,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 19:41:36,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 19:41:36,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 19:41:36,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 19:41:36,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 19:41:36,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 19:41:36,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 19:41:36,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (1/1) ... [2021-07-06 19:41:36,485 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:36,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:36,510 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) [2021-07-06 19:41:36,535 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 [2021-07-06 19:41:36,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 19:41:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 19:41:36,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 19:41:36,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 19:41:36,778 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 19:41:36,779 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-07-06 19:41:36,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:41:36 BoogieIcfgContainer [2021-07-06 19:41:36,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 19:41:36,781 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 19:41:36,781 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 19:41:36,783 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 19:41:36,784 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:41:36,784 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 07:41:36" (1/3) ... [2021-07-06 19:41:36,785 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d9d3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:41:36, skipping insertion in model container [2021-07-06 19:41:36,785 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:41:36,785 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 07:41:36" (2/3) ... [2021-07-06 19:41:36,786 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62d9d3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 07:41:36, skipping insertion in model container [2021-07-06 19:41:36,786 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 19:41:36,786 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:41:36" (3/3) ... [2021-07-06 19:41:36,787 INFO L389 chiAutomizerObserver]: Analyzing ICFG gj2007.i [2021-07-06 19:41:36,839 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 19:41:36,839 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 19:41:36,839 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 19:41:36,839 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 19:41:36,839 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 19:41:36,839 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 19:41:36,839 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 19:41:36,840 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 19:41:36,851 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-07-06 19:41:36,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-07-06 19:41:36,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:41:36,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:41:36,887 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-07-06 19:41:36,887 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-07-06 19:41:36,887 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 19:41:36,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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) [2021-07-06 19:41:36,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-07-06 19:41:36,888 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 19:41:36,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 19:41:36,889 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-07-06 19:41:36,889 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-07-06 19:41:36,895 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 3#L-1true havoc main_#res;havoc main_~x~0, main_~y~0;main_~x~0 := 0;main_~y~0 := 50; 4#L28-2true [2021-07-06 19:41:36,895 INFO L793 eck$LassoCheckResult]: Loop: 4#L28-2true assume !!(main_~x~0 < 100); 7#L28true assume !(main_~x~0 < 50);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1 + main_~y~0; 4#L28-2true [2021-07-06 19:41:36,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:41:36,900 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-07-06 19:41:36,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:41:36,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352160681] [2021-07-06 19:41:36,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:41:36,915 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:41:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:41:37,009 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:41:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:41:37,036 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:41:37,055 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:41:37,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:41:37,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2021-07-06 19:41:37,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:41:37,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141688364] [2021-07-06 19:41:37,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:41:37,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:41:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:41:37,073 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:41:37,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 19:41:37,080 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 19:41:37,083 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 19:41:37,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:41:37,094 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2021-07-06 19:41:37,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 19:41:37,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171990689] [2021-07-06 19:41:37,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 19:41:37,095 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 19:41:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:41:37,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:41:37,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 19:41:37,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 19:41:37,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 19:41:37,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171990689] [2021-07-06 19:41:37,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171990689] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 19:41:37,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 19:41:37,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 19:41:37,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188774688] [2021-07-06 19:41:37,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-06 19:41:37,240 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 19:41:37,241 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 19:41:37,241 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 19:41:37,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 19:41:37,241 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 19:41:37,242 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,242 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 19:41:37,242 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 19:41:37,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007.i_Iteration1_Loop [2021-07-06 19:41:37,242 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 19:41:37,243 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 19:41:37,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:41:37,286 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:41:37,373 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 19:41:37,374 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 19:41:37,376 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,382 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2021-07-06 19:41:37,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-07-06 19:41:37,387 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 19:41:37,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:41:37,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-07-06 19:41:37,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,437 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,441 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2021-07-06 19:41:37,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-07-06 19:41:37,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 19:41:37,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:41:37,475 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 19:41:37,475 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=-3}, {ULTIMATE.start_main_~y~0=-3}, {ULTIMATE.start_main_~y~0=7}] Lambdas: [0, 1, 1] Nus: [1, 0] [2021-07-06 19:41:37,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2021-07-06 19:41:37,496 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,498 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2021-07-06 19:41:37,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-07-06 19:41:37,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 19:41:37,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:41:37,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-07-06 19:41:37,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,532 INFO L229 MonitoredProcess]: Starting monitored process 5 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) [2021-07-06 19:41:37,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-07-06 19:41:37,535 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 19:41:37,535 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 19:41:37,561 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-07-06 19:41:37,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-07-06 19:41:37,577 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 19:41:37,577 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 19:41:37,577 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 19:41:37,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 19:41:37,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 19:41:37,587 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,587 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 19:41:37,587 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 19:41:37,587 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007.i_Iteration1_Loop [2021-07-06 19:41:37,588 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 19:41:37,588 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 19:41:37,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:41:37,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 19:41:37,666 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 19:41:37,671 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 19:41:37,672 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,673 INFO L229 MonitoredProcess]: Starting monitored process 6 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) [2021-07-06 19:41:37,674 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-07-06 19:41:37,676 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 19:41:37,684 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 19:41:37,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 19:41:37,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 19:41:37,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 19:41:37,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 19:41:37,689 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 19:41:37,689 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 19:41:37,704 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 19:41:37,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-07-06 19:41:37,733 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,737 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2021-07-06 19:41:37,744 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 19:41:37,751 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 19:41:37,751 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 19:41:37,751 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 19:41:37,751 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 19:41:37,751 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 19:41:37,753 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 19:41:37,753 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 19:41:37,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-07-06 19:41:37,773 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 19:41:37,777 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-07-06 19:41:37,777 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-07-06 19:41:37,779 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 19:41:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 19:41:37,795 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2021-07-06 19:41:37,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-07-06 19:41:37,797 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 19:41:37,797 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 19:41:37,797 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 19:41:37,798 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2021-07-06 19:41:37,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2021-07-06 19:41:37,817 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 19:41:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 19:41:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:41:37,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 19:41:37,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 19:41:37,860 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:41:37,861 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:41:37,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:41:37,862 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 19:41:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 19:41:37,883 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-06 19:41:37,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 19:41:37,884 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 19:41:37,886 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 19:41:37,887 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 19:41:37,888 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 19:41:37,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-07-06 19:41:37,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 19:41:37,911 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-07-06 19:41:37,912 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-07-06 19:41:37,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2021-07-06 19:41:37,953 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Result 27 states and 34 transitions. Complement of second has 7 states. [2021-07-06 19:41:37,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-07-06 19:41:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-07-06 19:41:37,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2021-07-06 19:41:37,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 2 letters. [2021-07-06 19:41:37,957 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:41:37,957 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 2 letters. [2021-07-06 19:41:37,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:41:37,958 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2021-07-06 19:41:37,958 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 19:41:37,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 34 transitions. [2021-07-06 19:41:37,961 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 19:41:37,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2021-07-06 19:41:37,964 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 19:41:37,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 19:41:37,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 19:41:37,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 19:41:37,965 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:41:37,965 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:41:37,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 19:41:37,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 19:41:37,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 19:41:37,969 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2021-07-06 19:41:37,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 19:41:37,971 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-07-06 19:41:37,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-06 19:41:37,971 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-07-06 19:41:37,971 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 19:41:37,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 19:41:37,972 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 19:41:37,972 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 19:41:37,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 19:41:37,972 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 19:41:37,972 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:41:37,972 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:41:37,973 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 19:41:37,973 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 19:41:37,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 19:41:37,973 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 19:41:37,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 19:41:37,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 07:41:37 BoogieIcfgContainer [2021-07-06 19:41:37,978 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 19:41:37,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 19:41:37,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 19:41:37,979 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 19:41:37,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 07:41:36" (3/4) ... [2021-07-06 19:41:37,982 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 19:41:37,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 19:41:37,984 INFO L168 Benchmark]: Toolchain (without parser) took 1812.03 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 39.2 MB in the beginning and 45.3 MB in the end (delta: -6.2 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-07-06 19:41:37,984 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:41:37,985 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.93 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 44.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 19:41:37,985 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.21 ms. Allocated memory is still 60.8 MB. Free memory was 44.4 MB in the beginning and 43.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 19:41:37,986 INFO L168 Benchmark]: Boogie Preprocessor took 28.44 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:41:37,986 INFO L168 Benchmark]: RCFGBuilder took 302.42 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 31.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-06 19:41:37,987 INFO L168 Benchmark]: BuchiAutomizer took 1197.60 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 31.6 MB in the beginning and 45.3 MB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:41:37,987 INFO L168 Benchmark]: Witness Printer took 3.93 ms. Allocated memory is still 73.4 MB. Free memory is still 45.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 19:41:37,989 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 60.8 MB. Free memory is still 41.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.93 ms. Allocated memory is still 60.8 MB. Free memory was 39.1 MB in the beginning and 44.5 MB in the end (delta: -5.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.21 ms. Allocated memory is still 60.8 MB. Free memory was 44.4 MB in the beginning and 43.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.44 ms. Allocated memory is still 60.8 MB. Free memory was 43.1 MB in the beginning and 42.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 302.42 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 31.6 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1197.60 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 31.6 MB in the beginning and 45.3 MB in the end (delta: -13.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.93 ms. Allocated memory is still 73.4 MB. Free memory is still 45.3 MB. There was no memory consumed. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 199 + -2 * x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf94 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 19:41:38,022 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...