./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_01.c -s /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/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-cad4683 [2019-11-15 21:38:40,409 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:38:40,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:38:40,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:38:40,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:38:40,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:38:40,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:38:40,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:38:40,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:38:40,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:38:40,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:38:40,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:38:40,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:38:40,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:38:40,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:38:40,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:38:40,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:38:40,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:38:40,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:38:40,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:38:40,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:38:40,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:38:40,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:38:40,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:38:40,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:38:40,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:38:40,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:38:40,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:38:40,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:38:40,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:38:40,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:38:40,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:38:40,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:38:40,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:38:40,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:38:40,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:38:40,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:38:40,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:38:40,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:38:40,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:38:40,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:38:40,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 21:38:40,468 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:38:40,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:38:40,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:38:40,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:38:40,470 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:38:40,471 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:38:40,471 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:38:40,471 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:38:40,471 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:38:40,472 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:38:40,472 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:38:40,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:38:40,472 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:38:40,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:38:40,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:38:40,473 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:38:40,473 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:38:40,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:38:40,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:38:40,474 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:38:40,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:38:40,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:38:40,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:38:40,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:38:40,475 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:38:40,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:38:40,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:38:40,476 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:38:40,477 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:38:40,477 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_80493a5f-19cc-473e-9d71-c99efa9419bb/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 [2019-11-15 21:38:40,502 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:38:40,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:38:40,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:38:40,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:38:40,516 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:38:40,517 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_01.c [2019-11-15 21:38:40,566 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/data/e848f6412/fb20373f886e4b0ebf9559c25dc2d29b/FLAG24fe034f9 [2019-11-15 21:38:40,961 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:38:40,961 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/sv-benchmarks/c/termination-restricted-15/NO_01.c [2019-11-15 21:38:40,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/data/e848f6412/fb20373f886e4b0ebf9559c25dc2d29b/FLAG24fe034f9 [2019-11-15 21:38:41,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/data/e848f6412/fb20373f886e4b0ebf9559c25dc2d29b [2019-11-15 21:38:41,385 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:38:41,386 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:38:41,387 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:38:41,387 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:38:41,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:38:41,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70838e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41, skipping insertion in model container [2019-11-15 21:38:41,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,400 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:38:41,413 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:38:41,540 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:38:41,545 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:38:41,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:38:41,629 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:38:41,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41 WrapperNode [2019-11-15 21:38:41,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:38:41,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:38:41,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:38:41,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:38:41,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:38:41,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:38:41,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:38:41,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:38:41,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... [2019-11-15 21:38:41,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:38:41,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:38:41,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:38:41,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:38:41,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/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 [2019-11-15 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:38:41,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:38:41,926 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:38:41,926 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-15 21:38:41,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:38:41 BoogieIcfgContainer [2019-11-15 21:38:41,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:38:41,928 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:38:41,928 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:38:41,931 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:38:41,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:38:41,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:38:41" (1/3) ... [2019-11-15 21:38:41,933 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62be4347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:38:41, skipping insertion in model container [2019-11-15 21:38:41,933 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:38:41,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:38:41" (2/3) ... [2019-11-15 21:38:41,934 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@62be4347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:38:41, skipping insertion in model container [2019-11-15 21:38:41,934 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:38:41,934 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:38:41" (3/3) ... [2019-11-15 21:38:41,935 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2019-11-15 21:38:41,989 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:38:41,990 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:38:41,991 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:38:41,991 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:38:41,991 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:38:41,991 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:38:41,991 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:38:41,991 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:38:42,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-15 21:38:42,036 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-11-15 21:38:42,037 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:38:42,037 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:38:42,051 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 21:38:42,051 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 21:38:42,051 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:38:42,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-15 21:38:42,053 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2019-11-15 21:38:42,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:38:42,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:38:42,054 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-15 21:38:42,054 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 21:38:42,062 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2019-11-15 21:38:42,063 INFO L793 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2019-11-15 21:38:42,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,071 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-11-15 21:38:42,078 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:38:42,079 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807398182] [2019-11-15 21:38:42,079 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,079 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:38:42,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:38:42,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:38:42,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807398182] [2019-11-15 21:38:42,171 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 21:38:42,171 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-15 21:38:42,171 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684923242] [2019-11-15 21:38:42,175 INFO L796 eck$LassoCheckResult]: stem already infeasible [2019-11-15 21:38:42,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,176 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-11-15 21:38:42,176 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:38:42,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796725777] [2019-11-15 21:38:42,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:38:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,200 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:38:42,228 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:38:42,229 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:38:42,229 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:38:42,229 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:38:42,229 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 21:38:42,229 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:38:42,230 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:38:42,230 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:38:42,230 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2019-11-15 21:38:42,230 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:38:42,231 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:38:42,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,362 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:38:42,363 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:38:42,368 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:38:42,368 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:38:42,376 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:38:42,376 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_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:38:42,382 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:38:42,382 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 21:38:42,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 21:38:42,387 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_80493a5f-19cc-473e-9d71-c99efa9419bb/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 [2019-11-15 21:38:42,392 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 21:38:42,392 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/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) [2019-11-15 21:38:42,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 21:38:42,404 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:38:42,413 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 21:38:42,415 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:38:42,415 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:38:42,415 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:38:42,416 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:38:42,416 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:38:42,416 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:38:42,416 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:38:42,416 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:38:42,416 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2019-11-15 21:38:42,417 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:38:42,417 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:38:42,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:38:42,488 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:38:42,492 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:38:42,494 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 [2019-11-15 21:38:42,495 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:38:42,495 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:38:42,495 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:38:42,495 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:38:42,500 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:38:42,500 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:38:42,506 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:38:42,507 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 [2019-11-15 21:38:42,508 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:38:42,508 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:38:42,508 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:38:42,508 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:38:42,511 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:38:42,511 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:38:42,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:38:42,519 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 [2019-11-15 21:38:42,520 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:38:42,520 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:38:42,521 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:38:42,521 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:38:42,521 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:38:42,522 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:38:42,522 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:38:42,528 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:38:42,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 21:38:42,539 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 21:38:42,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:38:42,541 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 21:38:42,541 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:38:42,542 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] [2019-11-15 21:38:42,544 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 21:38:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:38:42,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:38:42,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:38:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:38:42,601 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:38:42,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:38:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:38:42,618 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 [2019-11-15 21:38:42,619 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2019-11-15 21:38:42,661 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. [2019-11-15 21:38:42,663 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 [2019-11-15 21:38:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-15 21:38:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2019-11-15 21:38:42,668 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-15 21:38:42,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:38:42,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2019-11-15 21:38:42,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:38:42,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-15 21:38:42,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:38:42,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. [2019-11-15 21:38:42,680 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2019-11-15 21:38:42,683 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2019-11-15 21:38:42,684 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-15 21:38:42,684 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-15 21:38:42,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-15 21:38:42,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:38:42,685 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 21:38:42,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-15 21:38:42,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-15 21:38:42,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 21:38:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-15 21:38:42,709 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 21:38:42,709 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 21:38:42,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-15 21:38:42,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-15 21:38:42,713 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2019-11-15 21:38:42,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 21:38:42,724 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-11-15 21:38:42,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-15 21:38:42,725 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2019-11-15 21:38:42,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 21:38:42,726 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2019-11-15 21:38:42,726 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-15 21:38:42,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 21:38:42,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2019-11-15 21:38:42,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:38:42,726 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-15 21:38:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2019-11-15 21:38:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-11-15 21:38:42,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-15 21:38:42,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-11-15 21:38:42,727 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-15 21:38:42,728 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-11-15 21:38:42,728 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:38:42,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2019-11-15 21:38:42,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-15 21:38:42,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:38:42,728 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:38:42,729 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-15 21:38:42,729 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-15 21:38:42,729 INFO L791 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 [2019-11-15 21:38:42,729 INFO L793 eck$LassoCheckResult]: Loop: 87#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 87#L31-2 [2019-11-15 21:38:42,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,730 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2019-11-15 21:38:42,730 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:38:42,730 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107910722] [2019-11-15 21:38:42,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,730 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,730 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:38:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,737 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:38:42,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,738 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2019-11-15 21:38:42,738 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:38:42,738 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892308210] [2019-11-15 21:38:42,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,738 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:38:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,744 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:38:42,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:38:42,745 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2019-11-15 21:38:42,745 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:38:42,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469222737] [2019-11-15 21:38:42,745 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,745 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:38:42,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:38:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:38:42,761 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:38:42,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:38:42 BoogieIcfgContainer [2019-11-15 21:38:42,826 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:38:42,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:38:42,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:38:42,827 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:38:42,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:38:41" (3/4) ... [2019-11-15 21:38:42,838 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-15 21:38:42,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_80493a5f-19cc-473e-9d71-c99efa9419bb/bin/uautomizer/witness.graphml [2019-11-15 21:38:42,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:38:42,879 INFO L168 Benchmark]: Toolchain (without parser) took 1491.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -90.7 MB). Peak memory consumption was 49.3 MB. Max. memory is 11.5 GB. [2019-11-15 21:38:42,885 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:38:42,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:38:42,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.93 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. [2019-11-15 21:38:42,888 INFO L168 Benchmark]: Boogie Preprocessor took 17.99 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. [2019-11-15 21:38:42,889 INFO L168 Benchmark]: RCFGBuilder took 250.64 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:38:42,889 INFO L168 Benchmark]: BuchiAutomizer took 898.16 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: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. [2019-11-15 21:38:42,890 INFO L168 Benchmark]: Witness Printer took 50.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:38:42,897 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 243.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.93 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 17.99 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 250.64 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 898.16 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: 81.0 MB). Peak memory consumption was 81.0 MB. Max. memory is 11.5 GB. * Witness Printer took 50.18 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 13ms 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...