./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer --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 b0a853f0131530f88013a3fcfdf4f133f41c0569 .................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:09,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:09,360 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:09,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:09,371 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:09,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:09,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:09,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:09,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:09,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:09,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:09,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:09,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:09,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:09,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:09,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:09,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:09,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:09,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:09,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:09,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:09,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:09,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:09,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:09,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:09,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:09,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:09,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:09,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:09,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:09,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:09,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:09,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:09,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:09,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:09,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:09,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:09,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:09,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:09,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:09,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:09,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:56:09,418 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:09,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:09,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:09,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:09,420 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:09,420 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:56:09,420 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:56:09,421 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:56:09,421 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:56:09,421 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:56:09,421 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:56:09,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:09,422 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:56:09,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:09,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:09,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:56:09,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:56:09,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:56:09,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:09,423 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:56:09,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:09,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:56:09,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:09,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:09,424 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:56:09,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:09,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:09,425 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:56:09,426 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:56:09,426 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer 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 -> b0a853f0131530f88013a3fcfdf4f133f41c0569 [2019-11-25 08:56:09,588 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:09,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:09,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:09,610 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:09,611 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:09,612 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-25 08:56:09,674 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/data/a5117841b/ef3b447893d646da86059cfe7db0af64/FLAG835bf5cc0 [2019-11-25 08:56:10,046 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:10,047 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-25 08:56:10,052 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/data/a5117841b/ef3b447893d646da86059cfe7db0af64/FLAG835bf5cc0 [2019-11-25 08:56:10,065 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/data/a5117841b/ef3b447893d646da86059cfe7db0af64 [2019-11-25 08:56:10,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:10,068 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:10,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:10,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:10,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:10,075 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24ea7aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10, skipping insertion in model container [2019-11-25 08:56:10,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,083 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:10,095 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:10,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:10,227 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:10,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:10,319 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:10,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10 WrapperNode [2019-11-25 08:56:10,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:10,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:10,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:10,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:10,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,335 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:10,354 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:10,354 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:10,354 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:10,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,372 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... [2019-11-25 08:56:10,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:10,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:10,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:10,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:10,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:10,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:10,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:10,649 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:10,649 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:56:10,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10 BoogieIcfgContainer [2019-11-25 08:56:10,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:10,651 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:56:10,651 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:56:10,655 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:56:10,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:10,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:56:10" (1/3) ... [2019-11-25 08:56:10,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45fec5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:10, skipping insertion in model container [2019-11-25 08:56:10,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:10,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:10" (2/3) ... [2019-11-25 08:56:10,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45fec5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:56:10, skipping insertion in model container [2019-11-25 08:56:10,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:56:10,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10" (3/3) ... [2019-11-25 08:56:10,659 INFO L371 chiAutomizerObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c [2019-11-25 08:56:10,707 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:56:10,707 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:56:10,707 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:56:10,707 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:10,708 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:10,708 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:56:10,708 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:10,708 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:56:10,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-25 08:56:10,738 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:56:10,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:10,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:10,745 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:56:10,745 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:56:10,746 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:56:10,746 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-11-25 08:56:10,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2019-11-25 08:56:10,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:56:10,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:56:10,748 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:56:10,748 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:56:10,755 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0, main_~i~0, main_~r~0, main_~N~0;havoc main_~x~0;havoc main_~y~0;havoc main_~i~0;havoc main_~r~0;havoc main_~N~0;main_~N~0 := 10;main_~x~0 := 0;main_~y~0 := 0;main_~i~0 := 0; 3#L22-1true [2019-11-25 08:56:10,755 INFO L796 eck$LassoCheckResult]: Loop: 3#L22-1true assume !!(main_~i~0 < main_~N~0);main_~i~0 := 1 + main_~i~0;main_~r~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L22true assume !(main_~r~0 >= 0 && main_~r~0 <= 3); 3#L22-1true [2019-11-25 08:56:10,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:10,761 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:56:10,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:10,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225535786] [2019-11-25 08:56:10,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:10,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:10,860 INFO L82 PathProgramCache]: Analyzing trace with hash 1307, now seen corresponding path program 1 times [2019-11-25 08:56:10,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:10,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130343502] [2019-11-25 08:56:10,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,876 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:10,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:10,878 INFO L82 PathProgramCache]: Analyzing trace with hash 31098, now seen corresponding path program 1 times [2019-11-25 08:56:10,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:10,879 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172635687] [2019-11-25 08:56:10,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:56:10,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:56:11,007 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-11-25 08:56:11,057 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:56:11,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:56:11,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:56:11,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:56:11,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:56:11,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,058 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:56:11,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:56:11,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2019-11-25 08:56:11,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:56:11,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:56:11,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,225 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:56:11,227 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:56:11,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:56:11,240 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:56:11,241 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:56:11,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:56:11,250 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:56:11,250 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,255 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:56:11,255 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:56:11,262 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:56:11,262 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=4, ULTIMATE.start_main_~r~0=4} Honda state: {ULTIMATE.start_main_#t~nondet0=4, ULTIMATE.start_main_~r~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:56:11,278 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:11,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:56:11,297 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,425 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:56:11,427 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:56:11,427 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:56:11,427 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:56:11,427 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:56:11,427 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:56:11,428 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,428 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:56:11,428 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:56:11,428 INFO L133 ssoRankerPreferences]: Filename of dumped script: ChawdharyCookGulwaniSagivYang-ESOP2008-random2d.c_Iteration1_Loop [2019-11-25 08:56:11,428 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:56:11,428 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:56:11,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:56:11,576 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:56:11,580 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:11,589 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:11,592 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:11,592 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:11,593 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:11,593 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:11,606 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:11,606 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,612 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:11,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:11,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:11,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:11,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:11,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:11,637 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:56:11,637 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,646 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:11,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:11,663 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:11,664 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:11,664 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:11,664 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-25 08:56:11,664 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:11,668 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-25 08:56:11,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,672 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,680 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:56:11,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:56:11,681 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:56:11,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:56:11,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:56:11,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:56:11,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:56:11,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:56:11,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:56:11,691 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-25 08:56:11,691 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9c437351-97af-47db-aa2d-19030b9fb3a7/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:56:11,701 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:56:11,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:56:11,701 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:56:11,702 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~N~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~N~0 Supporting invariants [] [2019-11-25 08:56:11,710 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:56:11,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:11,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:56:11,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:11,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:11,768 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:56:11,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:56:11,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:11,812 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 [2019-11-25 08:56:11,814 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-11-25 08:56:11,851 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 27 states and 40 transitions. Complement of second has 5 states. [2019-11-25 08:56:11,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:56:11,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:56:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-11-25 08:56:11,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-25 08:56:11,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:11,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-25 08:56:11,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:11,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-25 08:56:11,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:56:11,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 40 transitions. [2019-11-25 08:56:11,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:56:11,863 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 0 states and 0 transitions. [2019-11-25 08:56:11,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:56:11,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:56:11,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:56:11,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:56:11,865 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:11,865 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:11,865 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:11,866 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:56:11,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:11,866 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:56:11,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:56:11,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:56:11 BoogieIcfgContainer [2019-11-25 08:56:11,871 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:56:11,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:11,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:11,872 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:11,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:10" (3/4) ... [2019-11-25 08:56:11,875 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:56:11,875 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:11,877 INFO L168 Benchmark]: Toolchain (without parser) took 1808.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.0 GB in the end (delta: -66.2 MB). Peak memory consumption was 77.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:11,880 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:11,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:11,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:11,884 INFO L168 Benchmark]: Boogie Preprocessor took 30.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:11,885 INFO L168 Benchmark]: RCFGBuilder took 266.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:11,886 INFO L168 Benchmark]: BuchiAutomizer took 1220.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:11,891 INFO L168 Benchmark]: Witness Printer took 3.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:11,894 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 248.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -192.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 266.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1220.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 107.9 MB). Peak memory consumption was 107.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.71 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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 -1 * i + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 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: 14 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf94 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq133 hnf93 smp100 dnf146 smp100 tf109 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...