./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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 ac2b0e405f36a91125e1a90b6b63874c5fe808a1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-678e011 [2019-11-19 23:55:08,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 23:55:08,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 23:55:08,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 23:55:08,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 23:55:08,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 23:55:08,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 23:55:08,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 23:55:08,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 23:55:08,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 23:55:08,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 23:55:08,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 23:55:08,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 23:55:08,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 23:55:08,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 23:55:08,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 23:55:08,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 23:55:08,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 23:55:08,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 23:55:08,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 23:55:08,392 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 23:55:08,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 23:55:08,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 23:55:08,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 23:55:08,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 23:55:08,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 23:55:08,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 23:55:08,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 23:55:08,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 23:55:08,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 23:55:08,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 23:55:08,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 23:55:08,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 23:55:08,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 23:55:08,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 23:55:08,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 23:55:08,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 23:55:08,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 23:55:08,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 23:55:08,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 23:55:08,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 23:55:08,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-19 23:55:08,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 23:55:08,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 23:55:08,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 23:55:08,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 23:55:08,438 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 23:55:08,438 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 23:55:08,439 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 23:55:08,439 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 23:55:08,439 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 23:55:08,439 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 23:55:08,440 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 23:55:08,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 23:55:08,441 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 23:55:08,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 23:55:08,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 23:55:08,441 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 23:55:08,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 23:55:08,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 23:55:08,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 23:55:08,442 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 23:55:08,442 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 23:55:08,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 23:55:08,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 23:55:08,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 23:55:08,443 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 23:55:08,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 23:55:08,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 23:55:08,444 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 23:55:08,444 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 23:55:08,445 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_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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 -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2019-11-19 23:55:08,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 23:55:08,634 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 23:55:08,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 23:55:08,639 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 23:55:08,639 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 23:55:08,640 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_01.c [2019-11-19 23:55:08,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/data/c0d6522e6/1643d1e00a844fbbb736e30870246599/FLAG8e91ded73 [2019-11-19 23:55:09,076 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 23:55:09,076 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/sv-benchmarks/c/termination-restricted-15/NO_01.c [2019-11-19 23:55:09,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/data/c0d6522e6/1643d1e00a844fbbb736e30870246599/FLAG8e91ded73 [2019-11-19 23:55:09,095 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/data/c0d6522e6/1643d1e00a844fbbb736e30870246599 [2019-11-19 23:55:09,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 23:55:09,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 23:55:09,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 23:55:09,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 23:55:09,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 23:55:09,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,110 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8fd385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09, skipping insertion in model container [2019-11-19 23:55:09,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,124 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 23:55:09,141 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 23:55:09,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:55:09,285 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 23:55:09,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 23:55:09,365 INFO L192 MainTranslator]: Completed translation [2019-11-19 23:55:09,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09 WrapperNode [2019-11-19 23:55:09,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 23:55:09,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 23:55:09,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 23:55:09,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 23:55:09,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 23:55:09,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 23:55:09,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 23:55:09,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 23:55:09,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... [2019-11-19 23:55:09,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 23:55:09,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 23:55:09,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 23:55:09,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 23:55:09,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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 [2019-11-19 23:55:09,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 23:55:09,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 23:55:09,702 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 23:55:09,702 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-19 23:55:09,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:09 BoogieIcfgContainer [2019-11-19 23:55:09,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 23:55:09,704 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 23:55:09,704 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 23:55:09,707 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 23:55:09,708 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:09,708 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 11:55:09" (1/3) ... [2019-11-19 23:55:09,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17191704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:55:09, skipping insertion in model container [2019-11-19 23:55:09,709 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:09,709 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:55:09" (2/3) ... [2019-11-19 23:55:09,709 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17191704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 11:55:09, skipping insertion in model container [2019-11-19 23:55:09,710 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 23:55:09,710 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:09" (3/3) ... [2019-11-19 23:55:09,711 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2019-11-19 23:55:09,767 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 23:55:09,767 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 23:55:09,767 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 23:55:09,767 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 23:55:09,767 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 23:55:09,767 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 23:55:09,768 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 23:55:09,768 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 23:55:09,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-19 23:55:09,798 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-11-19 23:55:09,798 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:09,798 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:09,804 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:55:09,804 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:09,804 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 23:55:09,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-19 23:55:09,806 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-11-19 23:55:09,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:09,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:09,807 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-19 23:55:09,807 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:09,813 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2019-11-19 23:55:09,813 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2019-11-19 23:55:09,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:09,817 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-19 23:55:09,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:09,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776311576] [2019-11-19 23:55:09,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:09,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:55:09,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776311576] [2019-11-19 23:55:09,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 23:55:09,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-19 23:55:09,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107482427] [2019-11-19 23:55:09,931 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-19 23:55:09,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:09,931 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-11-19 23:55:09,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:09,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944529446] [2019-11-19 23:55:09,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:09,953 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:10,000 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:10,000 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:10,001 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:10,001 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:10,001 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-19 23:55:10,001 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,001 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:10,001 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:10,002 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2019-11-19 23:55:10,002 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:10,002 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:10,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,124 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:10,125 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) [2019-11-19 23:55:10,130 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:10,131 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,138 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:10,138 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_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) [2019-11-19 23:55:10,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:10,146 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,151 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-19 23:55:10,151 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_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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 [2019-11-19 23:55:10,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-19 23:55:10,158 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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 [2019-11-19 23:55:10,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-19 23:55:10,167 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-19 23:55:10,174 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-19 23:55:10,175 INFO L210 LassoAnalysis]: Preferences: [2019-11-19 23:55:10,175 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-19 23:55:10,175 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-19 23:55:10,176 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-19 23:55:10,176 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-19 23:55:10,176 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,176 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-19 23:55:10,176 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-19 23:55:10,176 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2019-11-19 23:55:10,176 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-19 23:55:10,176 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-19 23:55:10,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-19 23:55:10,352 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-19 23:55:10,358 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,366 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 [2019-11-19 23:55:10,367 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:10,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:10,368 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:10,368 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:10,373 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:10,373 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:55:10,378 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,395 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 [2019-11-19 23:55:10,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:10,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:10,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:10,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:10,405 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-19 23:55:10,406 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-19 23:55:10,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,424 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 [2019-11-19 23:55:10,426 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-19 23:55:10,426 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-19 23:55:10,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-19 23:55:10,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-19 23:55:10,426 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-19 23:55:10,428 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-19 23:55:10,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-19 23:55:10,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-19 23:55:10,444 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-19 23:55:10,444 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/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) [2019-11-19 23:55:10,460 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-19 23:55:10,460 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-19 23:55:10,461 INFO L510 LassoAnalysis]: Proved termination. [2019-11-19 23:55:10,461 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 23:55:10,471 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-19 23:55:10,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:10,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:10,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-19 23:55:10,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 23:55:10,532 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-19 23:55:10,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-19 23:55:10,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 23:55:10,547 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-19 23:55:10,549 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2019-11-19 23:55:10,581 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2019-11-19 23:55:10,581 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 [2019-11-19 23:55:10,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-19 23:55:10,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2019-11-19 23:55:10,584 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-19 23:55:10,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:10,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-19 23:55:10,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:10,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-19 23:55:10,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-19 23:55:10,586 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2019-11-19 23:55:10,589 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2019-11-19 23:55:10,592 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2019-11-19 23:55:10,593 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-19 23:55:10,593 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-19 23:55:10,594 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-19 23:55:10,594 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:55:10,594 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 23:55:10,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-19 23:55:10,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-19 23:55:10,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-19 23:55:10,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-19 23:55:10,616 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-19 23:55:10,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 23:55:10,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 23:55:10,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 23:55:10,620 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2019-11-19 23:55:10,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 23:55:10,637 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-11-19 23:55:10,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 23:55:10,638 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2019-11-19 23:55:10,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:55:10,639 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2019-11-19 23:55:10,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-19 23:55:10,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-19 23:55:10,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2019-11-19 23:55:10,640 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 23:55:10,640 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-19 23:55:10,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2019-11-19 23:55:10,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-19 23:55:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-19 23:55:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-11-19 23:55:10,641 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-19 23:55:10,641 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-19 23:55:10,641 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 23:55:10,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2019-11-19 23:55:10,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-19 23:55:10,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 23:55:10,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 23:55:10,642 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-19 23:55:10,642 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-19 23:55:10,642 INFO L794 eck$LassoCheckResult]: Stem: 88#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 84#L10 assume !(main_~c~0 <= 10); 85#L17 assume !(main_~c~0 <= 50); 86#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 87#L31-2 [2019-11-19 23:55:10,643 INFO L796 eck$LassoCheckResult]: Loop: 87#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 87#L31-2 [2019-11-19 23:55:10,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:10,643 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2019-11-19 23:55:10,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:10,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823985841] [2019-11-19 23:55:10,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,651 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:10,651 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2019-11-19 23:55:10,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:10,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034151368] [2019-11-19 23:55:10,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,656 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:10,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 23:55:10,657 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2019-11-19 23:55:10,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 23:55:10,657 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503694424] [2019-11-19 23:55:10,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 23:55:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 23:55:10,665 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 23:55:10,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 11:55:10 BoogieIcfgContainer [2019-11-19 23:55:10,714 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 23:55:10,714 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 23:55:10,714 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 23:55:10,717 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 23:55:10,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:55:09" (3/4) ... [2019-11-19 23:55:10,720 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 23:55:10,755 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_67b50ee9-5c51-4852-b9db-9a4378c1ed6d/bin/uautomizer/witness.graphml [2019-11-19 23:55:10,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 23:55:10,757 INFO L168 Benchmark]: Toolchain (without parser) took 1657.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.2 MB in the beginning and 1.0 GB in the end (delta: -67.3 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:10,758 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 23:55:10,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:10,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.94 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. [2019-11-19 23:55:10,759 INFO L168 Benchmark]: Boogie Preprocessor took 14.39 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. [2019-11-19 23:55:10,760 INFO L168 Benchmark]: RCFGBuilder took 296.12 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:10,760 INFO L168 Benchmark]: BuchiAutomizer took 1009.51 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: 94.0 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:10,761 INFO L168 Benchmark]: Witness Printer took 41.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-19 23:55:10,764 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -185.1 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.94 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 14.39 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 296.12 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1009.51 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: 94.0 MB). Peak memory consumption was 94.0 MB. Max. memory is 11.5 GB. * Witness Printer took 41.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 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 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 23 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: 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, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...