./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 32bit --witnessprinter.graph.data.programhash f4078ef7bc39da0337b6d8ed5ecbbcec336a37b8 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:10:27,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:10:27,372 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:10:27,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:10:27,385 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:10:27,386 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:10:27,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:10:27,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:10:27,393 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:10:27,395 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:10:27,396 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:10:27,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:10:27,397 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:10:27,398 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:10:27,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:10:27,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:10:27,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:10:27,401 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:10:27,403 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:10:27,404 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:10:27,405 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:10:27,406 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:10:27,407 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:10:27,408 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:10:27,408 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:10:27,408 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:10:27,409 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:10:27,410 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:10:27,411 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:10:27,412 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:10:27,412 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:10:27,412 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:10:27,413 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:10:27,413 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:10:27,413 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:10:27,415 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:10:27,415 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-10-27 06:10:27,426 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:10:27,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:10:27,427 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:10:27,428 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:10:27,428 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:10:27,429 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 06:10:27,429 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:10:27,430 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:10:27,431 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:10:27,431 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:10:27,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 06:10:27,432 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:10:27,432 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:10:27,432 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:10:27,432 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:10:27,432 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:10:27,432 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:10:27,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:10:27,433 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:10:27,433 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:10:27,433 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:10:27,434 INFO L133 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_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4078ef7bc39da0337b6d8ed5ecbbcec336a37b8 [2018-10-27 06:10:27,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:10:27,476 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:10:27,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:10:27,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:10:27,481 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:10:27,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_20x0_true-unreach-call_true-termination.c [2018-10-27 06:10:27,527 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/data/0edaaa04d/66b70c125cad4163bf925c2956a4fbb2/FLAG9f995e86c [2018-10-27 06:10:27,897 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:10:27,897 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/sv-benchmarks/c/recursive-simple/sum_20x0_true-unreach-call_true-termination.c [2018-10-27 06:10:27,902 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/data/0edaaa04d/66b70c125cad4163bf925c2956a4fbb2/FLAG9f995e86c [2018-10-27 06:10:27,912 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/uautomizer/data/0edaaa04d/66b70c125cad4163bf925c2956a4fbb2 [2018-10-27 06:10:27,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:10:27,916 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:10:27,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:27,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:10:27,924 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:10:27,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:27" (1/1) ... [2018-10-27 06:10:27,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76955b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:27, skipping insertion in model container [2018-10-27 06:10:27,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:27" (1/1) ... [2018-10-27 06:10:27,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:10:27,946 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:10:28,049 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:28,051 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:10:28,061 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:28,070 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:10:28,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28 WrapperNode [2018-10-27 06:10:28,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:28,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:28,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:10:28,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:10:28,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:28,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:10:28,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:10:28,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:10:28,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... [2018-10-27 06:10:28,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:10:28,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:10:28,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:10:28,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:10:28,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 [2018-10-27 06:10:28,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:10:28,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:10:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-10-27 06:10:28,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-10-27 06:10:28,518 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:10:28,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:28 BoogieIcfgContainer [2018-10-27 06:10:28,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:10:28,519 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:10:28,520 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:10:28,524 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:10:28,525 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:28,525 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:10:27" (1/3) ... [2018-10-27 06:10:28,526 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d86ab55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:28, skipping insertion in model container [2018-10-27 06:10:28,526 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:28,526 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:28" (2/3) ... [2018-10-27 06:10:28,527 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d86ab55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:28, skipping insertion in model container [2018-10-27 06:10:28,527 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:28,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:28" (3/3) ... [2018-10-27 06:10:28,528 INFO L375 chiAutomizerObserver]: Analyzing ICFG sum_20x0_true-unreach-call_true-termination.c [2018-10-27 06:10:28,582 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:10:28,593 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:10:28,593 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:10:28,593 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:10:28,593 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:10:28,593 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:10:28,594 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:10:28,594 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:10:28,594 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:10:28,609 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-10-27 06:10:28,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:10:28,643 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:28,643 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:28,652 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:10:28,653 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:10:28,653 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:10:28,653 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-10-27 06:10:28,654 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:10:28,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:28,655 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:28,656 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:10:28,656 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:10:28,664 INFO L793 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 16#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 9#sumENTRYtrue [2018-10-27 06:10:28,665 INFO L795 eck$LassoCheckResult]: Loop: 9#sumENTRYtrue ~n := #in~n;~m := #in~m; 6#L4true assume !(~n <= 0); 7#L7true call #t~ret0 := sum(~n - 1, ~m + 1);< 9#sumENTRYtrue [2018-10-27 06:10:28,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:28,672 INFO L82 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2018-10-27 06:10:28,674 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:28,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:28,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:28,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:28,764 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2018-10-27 06:10:28,764 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:28,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:28,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:28,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:28,777 INFO L82 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2018-10-27 06:10:28,777 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:28,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:28,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:28,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:28,979 WARN L179 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-27 06:10:29,066 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:29,067 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:29,067 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:29,067 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:29,067 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:10:29,068 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:29,068 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:29,068 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:29,068 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0_true-unreach-call_true-termination.c_Iteration1_Loop [2018-10-27 06:10:29,068 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:29,068 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:29,086 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,399 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:29,399 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 [2018-10-27 06:10:29,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:29,403 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:29,408 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:29,408 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 [2018-10-27 06:10:29,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:29,426 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:29,434 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:10:29,434 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 [2018-10-27 06:10:29,452 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:10:29,452 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_01cde15a-159e-4d01-af51-91221a8b46e6/bin-2019/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 [2018-10-27 06:10:29,472 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:10:29,472 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:10:29,499 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:10:29,501 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:29,501 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:29,501 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:29,501 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:29,501 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:29,501 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:29,501 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:29,502 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:29,502 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0_true-unreach-call_true-termination.c_Iteration1_Loop [2018-10-27 06:10:29,502 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:29,502 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:29,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,540 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:29,632 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:29,635 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:29,636 INFO L122 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 [2018-10-27 06:10:29,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:29,638 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:29,639 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:29,639 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:29,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:29,640 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:29,640 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:29,644 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:29,644 INFO L122 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 [2018-10-27 06:10:29,645 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:29,645 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:29,646 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:29,646 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:29,646 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:29,647 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:29,647 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:29,648 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:29,649 INFO L122 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 [2018-10-27 06:10:29,649 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:29,649 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:29,649 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:29,649 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:29,649 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:29,652 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:29,652 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:29,656 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:29,660 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:10:29,660 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:10:29,662 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:29,662 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:10:29,662 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:29,662 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2018-10-27 06:10:29,663 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:10:29,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:29,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:29,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:30,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:30,061 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:10:30,062 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2018-10-27 06:10:30,212 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 12 states. [2018-10-27 06:10:30,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:10:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:10:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-10-27 06:10:30,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2018-10-27 06:10:30,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:30,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2018-10-27 06:10:30,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:30,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2018-10-27 06:10:30,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:30,222 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2018-10-27 06:10:30,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:30,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2018-10-27 06:10:30,230 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:30,230 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:30,231 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:30,232 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:30,232 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:30,232 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:30,232 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:30,233 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:10:30,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:10:30,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:30,233 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:10:30,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:10:30 BoogieIcfgContainer [2018-10-27 06:10:30,238 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:10:30,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:10:30,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:10:30,239 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:10:30,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:28" (3/4) ... [2018-10-27 06:10:30,243 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:10:30,243 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:10:30,244 INFO L168 Benchmark]: Toolchain (without parser) took 2328.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -98.5 MB). Peak memory consumption was 55.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:30,244 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:30,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:30,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.25 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:30,245 INFO L168 Benchmark]: Boogie Preprocessor took 10.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:30,246 INFO L168 Benchmark]: RCFGBuilder took 411.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:30,247 INFO L168 Benchmark]: BuchiAutomizer took 1719.00 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: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:30,247 INFO L168 Benchmark]: Witness Printer took 4.71 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. [2018-10-27 06:10:30,249 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.15 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.25 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.41 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 411.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1719.00 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: 82.5 MB). Peak memory consumption was 82.5 MB. Max. memory is 11.5 GB. * Witness Printer took 4.71 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. * 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 \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. 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: 5 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...