./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8 --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 64bit --witnessprinter.graph.data.programhash 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:50:02,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:50:02,291 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:50:02,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:50:02,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:50:02,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:50:02,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:50:02,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:50:02,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:50:02,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:50:02,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:50:02,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:50:02,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:50:02,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:50:02,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:50:02,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:50:02,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:50:02,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:50:02,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:50:02,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:50:02,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:50:02,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:50:02,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:50:02,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:50:02,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:50:02,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:50:02,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:50:02,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:50:02,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:50:02,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:50:02,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:50:02,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:50:02,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:50:02,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:50:02,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:50:02,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:50:02,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:50:02,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:50:02,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:50:02,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:50:02,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:50:02,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:50:02,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:50:02,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:50:02,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:50:02,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:50:02,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:50:02,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:50:02,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:50:02,422 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:50:02,423 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:50:02,423 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:50:02,423 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:50:02,424 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:50:02,424 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:50:02,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:50:02,424 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:50:02,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:50:02,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:50:02,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:50:02,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:50:02,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:50:02,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:50:02,426 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:50:02,427 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:50:02,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:50:02,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:50:02,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:50:02,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:50:02,428 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:50:02,429 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:50:02,429 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_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee8036e2d674497ff23bc3ed2316854be1442f7a1dd6897d55977d8700d5402 [2022-11-16 11:50:02,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:50:02,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:50:02,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:50:02,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:50:02,816 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:50:02,818 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2022-11-16 11:50:02,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/data/388b3b06d/0df4bb0c18904a2cbe2b3341b22de1b1/FLAG743e4a597 [2022-11-16 11:50:03,496 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:50:03,497 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig1.c [2022-11-16 11:50:03,504 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/data/388b3b06d/0df4bb0c18904a2cbe2b3341b22de1b1/FLAG743e4a597 [2022-11-16 11:50:03,866 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/data/388b3b06d/0df4bb0c18904a2cbe2b3341b22de1b1 [2022-11-16 11:50:03,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:50:03,871 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:50:03,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:50:03,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:50:03,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:50:03,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:03" (1/1) ... [2022-11-16 11:50:03,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8ad6f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:03, skipping insertion in model container [2022-11-16 11:50:03,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:50:03" (1/1) ... [2022-11-16 11:50:03,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:50:03,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:50:04,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:50:04,129 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:50:04,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:50:04,156 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:50:04,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04 WrapperNode [2022-11-16 11:50:04,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:50:04,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:50:04,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:50:04,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:50:04,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,195 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2022-11-16 11:50:04,195 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:50:04,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:50:04,197 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:50:04,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:50:04,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,215 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:50:04,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:50:04,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:50:04,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:50:04,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (1/1) ... [2022-11-16 11:50:04,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:04,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:04,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:50:04,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:50:04,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:50:04,396 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:50:04,398 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:50:04,462 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:50:04,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:50:04,472 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:50:04,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:50:04 BoogieIcfgContainer [2022-11-16 11:50:04,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:50:04,478 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:50:04,479 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:50:04,484 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:50:04,485 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:50:04,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:50:03" (1/3) ... [2022-11-16 11:50:04,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@393305fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:50:04, skipping insertion in model container [2022-11-16 11:50:04,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:50:04,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:50:04" (2/3) ... [2022-11-16 11:50:04,489 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@393305fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:50:04, skipping insertion in model container [2022-11-16 11:50:04,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:50:04,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:50:04" (3/3) ... [2022-11-16 11:50:04,491 INFO L332 chiAutomizerObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig1.c [2022-11-16 11:50:04,576 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:50:04,576 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:50:04,576 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:50:04,577 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:50:04,577 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:50:04,577 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:50:04,577 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:50:04,577 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:50:04,582 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-16 11:50:04,618 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:50:04,618 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:04,618 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:04,624 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:50:04,624 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:50:04,625 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:50:04,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-16 11:50:04,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-11-16 11:50:04,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:50:04,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:50:04,627 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:50:04,627 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-11-16 11:50:04,635 INFO L748 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~y~0#1;havoc main_~y~0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 5#L16-2true [2022-11-16 11:50:04,636 INFO L750 eck$LassoCheckResult]: Loop: 5#L16-2true assume !!(main_~y~0#1 >= 0);main_~y~0#1 := main_~y~0#1 - 1; 5#L16-2true [2022-11-16 11:50:04,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,643 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:50:04,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558925081] [2022-11-16 11:50:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,757 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:04,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,793 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-11-16 11:50:04,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172465822] [2022-11-16 11:50:04,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,833 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:04,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:04,841 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-11-16 11:50:04,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:50:04,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832586061] [2022-11-16 11:50:04,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:50:04,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:50:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,854 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:50:04,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:50:04,859 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:50:04,949 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:04,950 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:04,950 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:04,950 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:04,950 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:50:04,951 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:04,951 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:04,951 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:04,951 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2022-11-16 11:50:04,951 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:04,951 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:04,973 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:04,991 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,088 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:05,089 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:50:05,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,095 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:50:05,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:05,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,182 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:05,182 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:50:05,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:50:05,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:05,203 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,235 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:50:05,236 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:50:05,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,257 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:50:05,257 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:50:05,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:50:05,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:50:05,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:50:05,359 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-16 11:50:05,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,366 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:50:05,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:50:05,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:50:05,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:50:05,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-16 11:50:05,367 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,367 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:50:05,367 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:50:05,367 INFO L133 ssoRankerPreferences]: Filename of dumped script: PodelskiRybalchenko-TACAS2011-Fig1.c_Iteration1_Loop [2022-11-16 11:50:05,367 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:50:05,367 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:50:05,369 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,378 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,382 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:50:05,431 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:50:05,436 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-16 11:50:05,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,451 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 [2022-11-16 11:50:05,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:50:05,489 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:05,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:05,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:05,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:05,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:50:05,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:50:05,511 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:05,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,526 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:50:05,530 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 [2022-11-16 11:50:05,541 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:05,541 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:05,541 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:05,541 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:05,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-11-16 11:50:05,547 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-11-16 11:50:05,560 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-11-16 11:50:05,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,575 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 [2022-11-16 11:50:05,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:50:05,589 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-16 11:50:05,589 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-16 11:50:05,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-16 11:50:05,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-16 11:50:05,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-16 11:50:05,591 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-16 11:50:05,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-16 11:50:05,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-16 11:50:05,615 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-11-16 11:50:05,615 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-16 11:50:05,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:50:05,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:50:05,623 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:50:05,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:50:05,626 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-16 11:50:05,626 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-16 11:50:05,626 INFO L513 LassoAnalysis]: Proved termination. [2022-11-16 11:50:05,627 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [] [2022-11-16 11:50:05,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:50:05,640 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-16 11:50:05,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2022-11-16 11:50:05,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:50:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:05,705 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 11:50:05,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:05,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:50:05,721 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:50:05,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:50:05,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:50:05,766 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2022-11-16 11:50:05,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:50:05,805 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 16 states and 19 transitions. Complement of second has 5 states. [2022-11-16 11:50:05,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-11-16 11:50:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-16 11:50:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2022-11-16 11:50:05,814 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2022-11-16 11:50:05,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2022-11-16 11:50:05,815 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,815 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2022-11-16 11:50:05,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-16 11:50:05,817 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2022-11-16 11:50:05,819 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:50:05,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2022-11-16 11:50:05,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-16 11:50:05,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-16 11:50:05,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-16 11:50:05,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 11:50:05,824 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:05,824 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:05,825 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:50:05,825 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-16 11:50:05,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:50:05,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-16 11:50:05,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-16 11:50:05,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:50:05 BoogieIcfgContainer [2022-11-16 11:50:05,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:50:05,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:50:05,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:50:05,835 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:50:05,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:50:04" (3/4) ... [2022-11-16 11:50:05,838 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:50:05,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:50:05,840 INFO L158 Benchmark]: Toolchain (without parser) took 1968.99ms. Allocated memory is still 119.5MB. Free memory was 80.6MB in the beginning and 88.7MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:05,840 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:05,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.35ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 96.9MB in the end (delta: -16.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:50:05,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.37ms. Allocated memory is still 119.5MB. Free memory was 96.9MB in the beginning and 95.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:05,842 INFO L158 Benchmark]: Boogie Preprocessor took 21.33ms. Allocated memory is still 119.5MB. Free memory was 95.7MB in the beginning and 94.8MB in the end (delta: 849.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:50:05,843 INFO L158 Benchmark]: RCFGBuilder took 256.33ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 86.7MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 11:50:05,843 INFO L158 Benchmark]: BuchiAutomizer took 1355.66ms. Allocated memory is still 119.5MB. Free memory was 86.7MB in the beginning and 89.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:05,844 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 119.5MB. Free memory was 89.2MB in the beginning and 88.7MB in the end (delta: 539.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:50:05,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 119.5MB. Free memory is still 97.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.35ms. Allocated memory is still 119.5MB. Free memory was 80.4MB in the beginning and 96.9MB in the end (delta: -16.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.37ms. Allocated memory is still 119.5MB. Free memory was 96.9MB in the beginning and 95.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 21.33ms. Allocated memory is still 119.5MB. Free memory was 95.7MB in the beginning and 94.8MB in the end (delta: 849.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 256.33ms. Allocated memory is still 119.5MB. Free memory was 94.5MB in the beginning and 86.7MB in the end (delta: 7.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 1355.66ms. Allocated memory is still 119.5MB. Free memory was 86.7MB in the beginning and 89.2MB in the end (delta: -2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 119.5MB. Free memory was 89.2MB in the beginning and 88.7MB in the end (delta: 539.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * y + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 74ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-16 11:50:05,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dadfa5d7-6e7b-42e6-a2f7-f399a2401d10/bin/uautomizer-tPACEb0tL8/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