./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_03.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/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 89ce36fdd9a6142844b72609f6c752ece8563e1f .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:56:27,413 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:56:27,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:56:27,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:56:27,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:56:27,428 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:56:27,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:56:27,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:56:27,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:56:27,436 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:56:27,438 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:56:27,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:56:27,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:56:27,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:56:27,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:56:27,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:56:27,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:56:27,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:56:27,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:56:27,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:56:27,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:56:27,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:56:27,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:56:27,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:56:27,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:56:27,465 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:56:27,466 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:56:27,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:56:27,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:56:27,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:56:27,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:56:27,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:56:27,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:56:27,468 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:56:27,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:56:27,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:56:27,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:56:27,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:56:27,470 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:56:27,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:56:27,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:56:27,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:56:27,487 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:56:27,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:56:27,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:56:27,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:56:27,500 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:56:27,500 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:56:27,500 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:56:27,500 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:56:27,500 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:56:27,500 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:56:27,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:56:27,501 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:56:27,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:56:27,502 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:56:27,502 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:56:27,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:56:27,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:56:27,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:56:27,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:56:27,504 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:56:27,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:56:27,504 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:56:27,504 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:56:27,505 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:56:27,505 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/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/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 -> 89ce36fdd9a6142844b72609f6c752ece8563e1f [2019-10-22 08:56:27,533 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:56:27,545 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:56:27,548 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:56:27,549 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:56:27,549 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:56:27,550 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_03.c [2019-10-22 08:56:27,598 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/data/f2e97cf2e/56d47dcb134b465faf29b585ee35a42d/FLAG487c9390d [2019-10-22 08:56:27,981 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:56:27,982 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/sv-benchmarks/c/termination-restricted-15/NO_03.c [2019-10-22 08:56:27,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/data/f2e97cf2e/56d47dcb134b465faf29b585ee35a42d/FLAG487c9390d [2019-10-22 08:56:27,996 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/data/f2e97cf2e/56d47dcb134b465faf29b585ee35a42d [2019-10-22 08:56:27,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:56:27,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:56:28,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:28,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:56:28,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:56:28,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:27" (1/1) ... [2019-10-22 08:56:28,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f94bb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28, skipping insertion in model container [2019-10-22 08:56:28,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:56:27" (1/1) ... [2019-10-22 08:56:28,014 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:56:28,027 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:56:28,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:28,156 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:56:28,241 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:56:28,257 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:56:28,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28 WrapperNode [2019-10-22 08:56:28,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:56:28,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:28,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:56:28,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:56:28,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:56:28,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:56:28,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:56:28,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:56:28,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... [2019-10-22 08:56:28,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:56:28,304 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:56:28,304 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:56:28,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:56:28,305 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/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 [2019-10-22 08:56:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:56:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:56:28,504 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:56:28,504 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-10-22 08:56:28,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:28 BoogieIcfgContainer [2019-10-22 08:56:28,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:56:28,508 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:56:28,508 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:56:28,512 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:56:28,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:28,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:56:27" (1/3) ... [2019-10-22 08:56:28,514 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f78ecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:28, skipping insertion in model container [2019-10-22 08:56:28,514 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:28,514 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:56:28" (2/3) ... [2019-10-22 08:56:28,516 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6f78ecbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:56:28, skipping insertion in model container [2019-10-22 08:56:28,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:56:28,516 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:28" (3/3) ... [2019-10-22 08:56:28,518 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_03.c [2019-10-22 08:56:28,568 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:56:28,568 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:56:28,569 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:56:28,569 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:56:28,569 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:56:28,569 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:56:28,569 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:56:28,570 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:56:28,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:56:28,611 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 08:56:28,611 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:28,611 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:28,618 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:56:28,618 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:28,619 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:56:28,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-10-22 08:56:28,620 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-10-22 08:56:28,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:28,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:28,621 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:56:28,621 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-10-22 08:56:28,628 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 8#L10-2true [2019-10-22 08:56:28,628 INFO L793 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~j~0 := 0; 3#L12-2true assume !(main_~j~0 < 1); 10#L12-3true main_~i~0 := main_~i~0; 8#L10-2true [2019-10-22 08:56:28,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,634 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 08:56:28,643 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614274752] [2019-10-22 08:56:28,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,735 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:28,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,736 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2019-10-22 08:56:28,736 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,737 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064564312] [2019-10-22 08:56:28,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,737 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:56:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:56:28,830 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064564312] [2019-10-22 08:56:28,831 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:56:28,831 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:56:28,832 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171728810] [2019-10-22 08:56:28,837 INFO L808 eck$LassoCheckResult]: loop already infeasible [2019-10-22 08:56:28,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:56:28,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:56:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:56:28,881 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-10-22 08:56:28,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:56:28,929 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-10-22 08:56:28,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:56:28,932 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2019-10-22 08:56:28,933 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:56:28,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2019-10-22 08:56:28,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-10-22 08:56:28,940 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-10-22 08:56:28,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2019-10-22 08:56:28,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:56:28,941 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-10-22 08:56:28,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2019-10-22 08:56:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-10-22 08:56:28,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-10-22 08:56:28,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2019-10-22 08:56:28,968 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-10-22 08:56:28,968 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2019-10-22 08:56:28,968 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:56:28,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2019-10-22 08:56:28,969 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-10-22 08:56:28,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:56:28,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:56:28,969 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:56:28,969 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-10-22 08:56:28,970 INFO L791 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 29#L10-2 [2019-10-22 08:56:28,970 INFO L793 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~i~0 < 100);main_~j~0 := 0; 26#L12-2 assume !!(main_~j~0 < 1);main_~j~0 := 1 + main_~j~0; 27#L12-2 assume !(main_~j~0 < 1); 30#L12-3 main_~i~0 := main_~i~0; 29#L10-2 [2019-10-22 08:56:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-10-22 08:56:28,971 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,971 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170950101] [2019-10-22 08:56:28,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,971 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,978 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:28,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2019-10-22 08:56:28,979 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,979 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243617933] [2019-10-22 08:56:28,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,979 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,979 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:28,993 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:28,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:56:28,993 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2019-10-22 08:56:28,994 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:56:28,994 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996649694] [2019-10-22 08:56:28,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,994 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:56:28,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:56:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:56:29,004 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:56:29,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:56:29 BoogieIcfgContainer [2019-10-22 08:56:29,083 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:56:29,083 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:56:29,083 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:56:29,083 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:56:29,084 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:56:28" (3/4) ... [2019-10-22 08:56:29,087 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-10-22 08:56:29,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c3ef1689-530d-4d9d-a0a6-3398ae4d27aa/bin/uautomizer/witness.graphml [2019-10-22 08:56:29,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:56:29,124 INFO L168 Benchmark]: Toolchain (without parser) took 1124.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -130.1 MB). Peak memory consumption was 5.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,125 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:56:29,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.44 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,126 INFO L168 Benchmark]: Boogie Preprocessor took 14.75 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. [2019-10-22 08:56:29,127 INFO L168 Benchmark]: RCFGBuilder took 201.59 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,127 INFO L168 Benchmark]: BuchiAutomizer took 574.66 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,128 INFO L168 Benchmark]: Witness Printer took 39.25 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:56:29,131 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 258.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.44 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.75 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 201.59 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: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 574.66 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: 36.3 MB). Peak memory consumption was 36.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.25 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: 2.7 MB). Peak memory consumption was 2.7 MB. 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=0, j=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...