./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/gj2007b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gj2007b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU --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 a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:11:46,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:11:46,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:11:46,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:11:46,859 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:11:46,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:11:46,862 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:11:46,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:11:46,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:11:46,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:11:46,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:11:46,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:11:46,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:11:46,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:11:46,874 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:11:46,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:11:46,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:11:46,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:11:46,880 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:11:46,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:11:46,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:11:46,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:11:46,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:11:46,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:11:46,898 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:11:46,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:11:46,904 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:11:46,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:11:46,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:11:46,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:11:46,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:11:46,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:11:46,912 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:11:46,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:11:46,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:11:46,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:11:46,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:11:46,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:11:46,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:11:46,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:11:46,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:11:46,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 23:11:46,966 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:11:46,969 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:11:46,970 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:11:46,970 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:11:46,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:11:46,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:11:46,972 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:11:46,972 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:11:46,973 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:11:46,973 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:11:46,974 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:11:46,974 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:11:46,974 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:11:46,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:11:46,975 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:11:46,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:11:46,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:11:46,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:11:46,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:11:46,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:11:46,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:11:46,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:11:46,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:11:46,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:11:46,977 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:11:46,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:11:46,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:11:46,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:11:46,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:11:46,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:11:46,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:11:46,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:11:46,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:11:46,981 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5dbdf40c5c8abdf745ea2973f48a7f1bd1d56b53cd410b7a2d364d83fc651a9 [2021-11-02 23:11:47,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:11:47,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:11:47,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:11:47,269 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:11:47,270 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:11:47,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/loop-lit/gj2007b.i [2021-11-02 23:11:47,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/data/4d4d5e61a/424437c072704a61a7b3d9a7352d498a/FLAG37ce25f13 [2021-11-02 23:11:47,826 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:11:47,827 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/sv-benchmarks/c/loop-lit/gj2007b.i [2021-11-02 23:11:47,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/data/4d4d5e61a/424437c072704a61a7b3d9a7352d498a/FLAG37ce25f13 [2021-11-02 23:11:48,191 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/data/4d4d5e61a/424437c072704a61a7b3d9a7352d498a [2021-11-02 23:11:48,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:11:48,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:11:48,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:11:48,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:11:48,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:11:48,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50189486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48, skipping insertion in model container [2021-11-02 23:11:48,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:11:48,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:11:48,437 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-11-02 23:11:48,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:11:48,454 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:11:48,466 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-11-02 23:11:48,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:11:48,483 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:11:48,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48 WrapperNode [2021-11-02 23:11:48,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:11:48,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:11:48,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:11:48,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:11:48,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:11:48,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:11:48,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:11:48,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:11:48,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:11:48,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:11:48,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:11:48,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:11:48,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (1/1) ... [2021-11-02 23:11:48,553 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:48,578 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:48,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:11:48,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:11:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:11:48,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:11:48,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:11:48,819 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:11:48,819 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-02 23:11:48,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:48 BoogieIcfgContainer [2021-11-02 23:11:48,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:11:48,823 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:11:48,823 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:11:48,826 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:11:48,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:11:48,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:11:48" (1/3) ... [2021-11-02 23:11:48,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29017c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:11:48, skipping insertion in model container [2021-11-02 23:11:48,829 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:11:48,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:11:48" (2/3) ... [2021-11-02 23:11:48,830 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29017c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:11:48, skipping insertion in model container [2021-11-02 23:11:48,830 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:11:48,831 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:48" (3/3) ... [2021-11-02 23:11:48,832 INFO L389 chiAutomizerObserver]: Analyzing ICFG gj2007b.i [2021-11-02 23:11:48,888 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:11:48,888 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:11:48,888 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:11:48,889 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:11:48,889 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:11:48,889 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:11:48,889 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:11:48,890 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:11:48,907 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-11-02 23:11:48,946 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 23:11:48,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:11:48,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:11:48,954 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:11:48,954 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 23:11:48,955 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:11:48,955 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-11-02 23:11:48,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-11-02 23:11:48,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:11:48,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:11:48,964 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-11-02 23:11:48,964 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-11-02 23:11:48,981 INFO L791 eck$LassoCheckResult]: Stem: 4#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); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~m~0, main_~n~0;main_~x~0 := 0;main_~m~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L28-2true [2021-11-02 23:11:48,982 INFO L793 eck$LassoCheckResult]: Loop: 8#L28-2true assume !!(main_~x~0 < main_~n~0); 7#L29true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4; 16#L29-2true main_~x~0 := 1 + main_~x~0; 8#L28-2true [2021-11-02 23:11:48,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:48,989 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-11-02 23:11:49,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:49,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983082204] [2021-11-02 23:11:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:49,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,148 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:11:49,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,224 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:11:49,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash 40876, now seen corresponding path program 1 times [2021-11-02 23:11:49,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:49,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850375074] [2021-11-02 23:11:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:49,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,254 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:11:49,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:11:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:49,272 INFO L85 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2021-11-02 23:11:49,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:11:49,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504221930] [2021-11-02 23:11:49,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:11:49,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:11:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,294 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:11:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:11:49,330 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:11:49,410 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:11:49,411 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:11:49,412 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:11:49,412 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:11:49,412 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-11-02 23:11:49,412 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,413 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:11:49,413 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:11:49,413 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007b.i_Iteration1_Loop [2021-11-02 23:11:49,413 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:11:49,414 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:11:49,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:11:49,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:11:49,550 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:11:49,551 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-11-02 23:11:49,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:49,556 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:49,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-02 23:11:49,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:11:49,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:11:49,602 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-11-02 23:11:49,603 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-11-02 23:11:49,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-11-02 23:11:49,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:49,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:49,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-02 23:11:49,647 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-11-02 23:11:49,647 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:11:49,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:49,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:49,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:49,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-02 23:11:49,713 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-11-02 23:11:49,714 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-11-02 23:11:49,857 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-11-02 23:11:49,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:49,860 INFO L210 LassoAnalysis]: Preferences: [2021-11-02 23:11:49,860 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-02 23:11:49,860 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-02 23:11:49,860 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-02 23:11:49,860 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-02 23:11:49,861 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,861 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-02 23:11:49,861 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-02 23:11:49,861 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007b.i_Iteration1_Loop [2021-11-02 23:11:49,861 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-02 23:11:49,861 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-02 23:11:49,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:11:49,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-02 23:11:49,925 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-02 23:11:49,931 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-02 23:11:49,933 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:49,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:49,936 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:49,949 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 [2021-11-02 23:11:49,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:11:49,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:11:49,962 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:11:49,962 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:11:49,962 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:11:49,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:11:49,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:11:49,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-02 23:11:49,999 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-02 23:11:50,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:50,045 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:50,046 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:50,065 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 [2021-11-02 23:11:50,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-02 23:11:50,079 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-02 23:11:50,079 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-02 23:11:50,079 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-02 23:11:50,079 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-02 23:11:50,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-11-02 23:11:50,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-02 23:11:50,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-02 23:11:50,112 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-02 23:11:50,117 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-11-02 23:11:50,118 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-11-02 23:11:50,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:11:50,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:11:50,133 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:11:50,136 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-02 23:11:50,136 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-11-02 23:11:50,136 INFO L513 LassoAnalysis]: Proved termination. [2021-11-02 23:11:50,137 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-11-02 23:11:50,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-02 23:11:50,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:50,179 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-11-02 23:11:50,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:11:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:50,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-02 23:11:50,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:11:50,283 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 23:11:50,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:11:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:11:50,341 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 [2021-11-02 23:11:50,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-02 23:11:50,403 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 38 states and 48 transitions. Complement of second has 7 states. [2021-11-02 23:11:50,404 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 [2021-11-02 23:11:50,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-02 23:11:50,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2021-11-02 23:11:50,409 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2021-11-02 23:11:50,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:11:50,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2021-11-02 23:11:50,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:11:50,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2021-11-02 23:11:50,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-02 23:11:50,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-11-02 23:11:50,417 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:11:50,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2021-11-02 23:11:50,421 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-02 23:11:50,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-02 23:11:50,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-02 23:11:50,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:11:50,423 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:11:50,423 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:11:50,423 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-02 23:11:50,423 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:11:50,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-02 23:11:50,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-02 23:11:50,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-02 23:11:50,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:11:50 BoogieIcfgContainer [2021-11-02 23:11:50,431 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:11:50,432 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:11:50,432 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:11:50,432 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:11:50,433 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:11:48" (3/4) ... [2021-11-02 23:11:50,437 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-02 23:11:50,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:11:50,440 INFO L168 Benchmark]: Toolchain (without parser) took 2242.57 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 53.2 MB in the beginning and 61.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:50,440 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 92.3 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:50,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.02 ms. Allocated memory is still 92.3 MB. Free memory was 53.0 MB in the beginning and 68.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:50,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 67.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:50,443 INFO L168 Benchmark]: Boogie Preprocessor took 22.22 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 66.4 MB in the end (delta: 950.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:50,444 INFO L168 Benchmark]: RCFGBuilder took 278.23 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 57.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:50,445 INFO L168 Benchmark]: BuchiAutomizer took 1608.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 61.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-11-02 23:11:50,446 INFO L168 Benchmark]: Witness Printer took 5.50 ms. Allocated memory is still 111.1 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:11:50,458 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 92.3 MB. Free memory is still 69.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.02 ms. Allocated memory is still 92.3 MB. Free memory was 53.0 MB in the beginning and 68.9 MB in the end (delta: -15.9 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.75 ms. Allocated memory is still 92.3 MB. Free memory was 68.7 MB in the beginning and 67.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.22 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 66.4 MB in the end (delta: 950.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 278.23 ms. Allocated memory is still 92.3 MB. Free memory was 66.4 MB in the beginning and 57.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1608.73 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.4 MB in the beginning and 61.1 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.50 ms. Allocated memory is still 111.1 MB. Free memory is still 61.1 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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: 10 SDtfs, 13 SDslu, 15 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 66ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-02 23:11:50,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-02 23:11:50,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd11e317-1e1d-4e0d-a735-a8617ecbff8d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE