./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2291f924dd9adb1923bbd2b3119647838e71c665 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:48:07,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:48:07,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:48:07,408 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:48:07,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:48:07,409 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:48:07,410 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:48:07,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:48:07,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:48:07,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:48:07,413 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:48:07,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:48:07,414 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:48:07,415 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:48:07,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:48:07,416 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:48:07,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:48:07,418 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:48:07,419 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:48:07,420 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:48:07,421 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:48:07,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:48:07,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:48:07,423 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:48:07,423 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:48:07,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:48:07,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:48:07,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:48:07,425 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:48:07,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:48:07,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:48:07,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:48:07,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:48:07,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:48:07,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:48:07,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:48:07,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 08:48:07,439 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:48:07,439 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:48:07,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:48:07,440 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:48:07,440 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:48:07,440 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:48:07,440 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:48:07,440 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:48:07,441 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:48:07,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:48:07,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:48:07,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:48:07,443 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:48:07,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:48:07,443 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:48:07,443 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:48:07,444 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:48:07,444 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2291f924dd9adb1923bbd2b3119647838e71c665 [2018-11-10 08:48:07,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:48:07,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:48:07,477 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:48:07,478 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:48:07,478 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:48:07,479 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-11-10 08:48:07,522 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/data/ea94d84b0/3ae6bba657fe449c8a208a5b7f8987a8/FLAG1e0dccf15 [2018-11-10 08:48:07,921 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:48:07,921 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/sv-benchmarks/c/termination-crafted/Pure2Phase_true-termination_true-valid-memsafety.c [2018-11-10 08:48:07,925 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/data/ea94d84b0/3ae6bba657fe449c8a208a5b7f8987a8/FLAG1e0dccf15 [2018-11-10 08:48:07,935 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/data/ea94d84b0/3ae6bba657fe449c8a208a5b7f8987a8 [2018-11-10 08:48:07,938 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:48:07,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:48:07,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:48:07,939 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:48:07,941 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:48:07,942 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:48:07" (1/1) ... [2018-11-10 08:48:07,944 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da3d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:07, skipping insertion in model container [2018-11-10 08:48:07,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:48:07" (1/1) ... [2018-11-10 08:48:07,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:48:07,960 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:48:08,052 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:48:08,054 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:48:08,063 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:48:08,071 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:48:08,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08 WrapperNode [2018-11-10 08:48:08,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:48:08,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:48:08,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:48:08,072 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:48:08,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,083 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:48:08,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:48:08,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:48:08,097 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:48:08,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,110 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... [2018-11-10 08:48:08,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:48:08,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:48:08,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:48:08,111 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:48:08,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:48:08,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:48:08,291 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:48:08,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:48:08 BoogieIcfgContainer [2018-11-10 08:48:08,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:48:08,292 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:48:08,292 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:48:08,295 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:48:08,295 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:48:08,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:48:07" (1/3) ... [2018-11-10 08:48:08,296 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cdb6937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:48:08, skipping insertion in model container [2018-11-10 08:48:08,296 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:48:08,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:48:08" (2/3) ... [2018-11-10 08:48:08,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cdb6937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:48:08, skipping insertion in model container [2018-11-10 08:48:08,297 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:48:08,297 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:48:08" (3/3) ... [2018-11-10 08:48:08,298 INFO L375 chiAutomizerObserver]: Analyzing ICFG Pure2Phase_true-termination_true-valid-memsafety.c [2018-11-10 08:48:08,340 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:48:08,341 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:48:08,341 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:48:08,341 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:48:08,341 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:48:08,341 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:48:08,341 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:48:08,341 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:48:08,341 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:48:08,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-10 08:48:08,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:48:08,365 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:48:08,365 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:48:08,369 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 08:48:08,370 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:48:08,370 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:48:08,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-10 08:48:08,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:48:08,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:48:08,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:48:08,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 08:48:08,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:48:08,376 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 14#L20true assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 4#L21true assume !!(main_~z~0 <= 1073741823); 9#L24-2true [2018-11-10 08:48:08,377 INFO L795 eck$LassoCheckResult]: Loop: 9#L24-2true assume true; 5#L22-1true assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 11#L24true assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 9#L24-2true [2018-11-10 08:48:08,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,380 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-11-10 08:48:08,382 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,443 INFO L82 PathProgramCache]: Analyzing trace with hash 45881, now seen corresponding path program 1 times [2018-11-10 08:48:08,443 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906866, now seen corresponding path program 1 times [2018-11-10 08:48:08,452 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,453 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,515 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:08,516 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:08,516 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:08,516 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:08,517 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:48:08,517 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,517 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:08,517 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:08,517 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-10 08:48:08,517 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:08,517 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:08,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,567 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,642 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:08,642 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,646 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:08,646 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:08,666 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:48:08,666 INFO L446 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/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,669 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:08,669 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:08,685 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:48:08,686 INFO L446 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/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,688 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:08,688 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,706 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:48:08,706 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:08,726 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:48:08,727 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:08,727 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:08,727 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:08,727 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:08,727 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:48:08,727 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:08,727 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:08,727 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:08,727 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-10 08:48:08,727 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:08,727 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:08,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:08,810 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:08,814 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:48:08,815 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:08,816 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:08,816 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:08,816 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:08,816 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:08,820 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:48:08,820 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:48:08,827 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:48:08,828 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:08,828 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:08,828 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:48:08,829 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:08,829 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:08,829 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:08,830 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:48:08,830 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:48:08,834 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:48:08,837 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:48:08,837 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:48:08,839 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:48:08,839 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:48:08,839 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:48:08,840 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-11-10 08:48:08,841 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:48:08,864 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:08,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:08,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:08,906 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:08,907 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2018-11-10 08:48:08,936 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 33 states and 40 transitions. Complement of second has 8 states. [2018-11-10 08:48:08,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:08,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-10 08:48:08,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-10 08:48:08,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:08,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-10 08:48:08,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:08,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-10 08:48:08,940 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:08,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2018-11-10 08:48:08,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:48:08,944 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 14 states and 17 transitions. [2018-11-10 08:48:08,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 08:48:08,945 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 08:48:08,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2018-11-10 08:48:08,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:48:08,945 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-11-10 08:48:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2018-11-10 08:48:08,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-10 08:48:08,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 08:48:08,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2018-11-10 08:48:08,965 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-11-10 08:48:08,965 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-11-10 08:48:08,965 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:48:08,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 17 transitions. [2018-11-10 08:48:08,966 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 08:48:08,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:48:08,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:48:08,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:48:08,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:48:08,967 INFO L793 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 95#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 100#L21 assume !!(main_~z~0 <= 1073741823); 101#L24-2 assume true; 106#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 107#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 103#L27 [2018-11-10 08:48:08,967 INFO L795 eck$LassoCheckResult]: Loop: 103#L27 assume !!(main_~z~0 <= 1073741823); 104#L24-2 assume true; 96#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 97#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 103#L27 [2018-11-10 08:48:08,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1806906859, now seen corresponding path program 1 times [2018-11-10 08:48:08,967 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1833334, now seen corresponding path program 1 times [2018-11-10 08:48:08,975 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,975 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:08,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1376660064, now seen corresponding path program 1 times [2018-11-10 08:48:08,981 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:08,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:08,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:08,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:08,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,010 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,010 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,011 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,011 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,011 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:48:09,011 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,011 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,011 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,011 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-10 08:48:09,011 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,011 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,075 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,075 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/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 [2018-11-10 08:48:09,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,084 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,101 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:48:09,101 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/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 [2018-11-10 08:48:09,103 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,104 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,120 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:48:09,121 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/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 [2018-11-10 08:48:09,124 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,124 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,142 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:48:09,142 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,195 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:48:09,197 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,197 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,197 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,197 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,197 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:48:09,197 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,197 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,197 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,197 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-10 08:48:09,197 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,198 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,305 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,305 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:48:09,306 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,307 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,307 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,307 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,307 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,308 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:48:09,308 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:48:09,313 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:48:09,313 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,314 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,314 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,315 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,318 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:48:09,318 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:48:09,322 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:48:09,324 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,324 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,324 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:48:09,325 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,325 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,325 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,325 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:48:09,325 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:48:09,330 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:48:09,332 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:48:09,332 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:48:09,332 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:48:09,332 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:48:09,332 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:48:09,332 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 08:48:09,333 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:48:09,345 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:09,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:09,368 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-10 08:48:09,382 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 17 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 22 states and 27 transitions. Complement of second has 6 states. [2018-11-10 08:48:09,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:09,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:09,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-10 08:48:09,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 08:48:09,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-10 08:48:09,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 7 letters. Loop has 8 letters. [2018-11-10 08:48:09,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-11-10 08:48:09,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:48:09,385 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 22 states and 27 transitions. [2018-11-10 08:48:09,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-10 08:48:09,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-10 08:48:09,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2018-11-10 08:48:09,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:48:09,386 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2018-11-10 08:48:09,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2018-11-10 08:48:09,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-11-10 08:48:09,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 08:48:09,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-10 08:48:09,387 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-10 08:48:09,387 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-10 08:48:09,387 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:48:09,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-11-10 08:48:09,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:48:09,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:48:09,388 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:48:09,388 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 08:48:09,388 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:48:09,388 INFO L793 eck$LassoCheckResult]: Stem: 194#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 186#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 187#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 192#L21 assume !!(main_~z~0 <= 1073741823); 193#L24-2 assume true; 202#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 201#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 195#L27 assume !!(main_~z~0 <= 1073741823); 197#L24-2 [2018-11-10 08:48:09,388 INFO L795 eck$LassoCheckResult]: Loop: 197#L24-2 assume true; 188#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 189#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 197#L24-2 [2018-11-10 08:48:09,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,388 INFO L82 PathProgramCache]: Analyzing trace with hash 179537811, now seen corresponding path program 2 times [2018-11-10 08:48:09,388 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:09,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,395 INFO L82 PathProgramCache]: Analyzing trace with hash 45881, now seen corresponding path program 2 times [2018-11-10 08:48:09,395 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,395 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,396 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:48:09,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1376660071, now seen corresponding path program 1 times [2018-11-10 08:48:09,400 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,402 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:48:09,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,420 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,420 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,420 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,420 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,420 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:48:09,420 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,420 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,420 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,421 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-10 08:48:09,421 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,421 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,475 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,475 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,476 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,477 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,493 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:48:09,493 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,495 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,495 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,513 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:48:09,513 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,530 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:48:09,531 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,531 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,531 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,531 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,532 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:48:09,532 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,532 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,532 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,532 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-10 08:48:09,532 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,532 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,570 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,571 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:48:09,571 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,572 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,572 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,573 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:48:09,573 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:48:09,577 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:48:09,578 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,578 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,578 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:48:09,578 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,578 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,579 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,581 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:48:09,581 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:48:09,583 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:48:09,585 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:48:09,586 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:48:09,586 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:48:09,586 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:48:09,586 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:48:09,586 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-11-10 08:48:09,587 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:48:09,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:09,625 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:09,625 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-10 08:48:09,632 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 29 states and 36 transitions. Complement of second has 7 states. [2018-11-10 08:48:09,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:09,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:09,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 08:48:09,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 08:48:09,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-10 08:48:09,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-10 08:48:09,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2018-11-10 08:48:09,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:48:09,635 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 23 states and 28 transitions. [2018-11-10 08:48:09,635 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 08:48:09,635 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-10 08:48:09,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 28 transitions. [2018-11-10 08:48:09,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:48:09,635 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-10 08:48:09,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 28 transitions. [2018-11-10 08:48:09,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 08:48:09,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 08:48:09,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-11-10 08:48:09,637 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-10 08:48:09,637 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-10 08:48:09,637 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 08:48:09,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2018-11-10 08:48:09,637 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:48:09,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:48:09,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:48:09,638 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1] [2018-11-10 08:48:09,638 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:48:09,638 INFO L793 eck$LassoCheckResult]: Stem: 298#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 290#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~y~0, main_~z~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 291#L20 assume !!(-1073741823 <= main_~y~0 && main_~y~0 <= 1073741823); 296#L21 assume !!(main_~z~0 <= 1073741823); 297#L24-2 assume true; 304#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 307#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 299#L27 assume !!(main_~z~0 <= 1073741823); 300#L24-2 assume true; 312#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 310#L24 assume main_~y~0 >= 0;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 301#L27 assume !!(main_~z~0 <= 1073741823); 303#L24-2 [2018-11-10 08:48:09,638 INFO L795 eck$LassoCheckResult]: Loop: 303#L24-2 assume true; 292#L22-1 assume !!(main_~z~0 >= 0);main_~y~0 := main_~y~0 - 1; 293#L24 assume !(main_~y~0 >= 0);main_~z~0 := main_~z~0 - 1; 303#L24-2 [2018-11-10 08:48:09,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,638 INFO L82 PathProgramCache]: Analyzing trace with hash -273210946, now seen corresponding path program 3 times [2018-11-10 08:48:09,638 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:48:09,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,647 INFO L82 PathProgramCache]: Analyzing trace with hash 45881, now seen corresponding path program 3 times [2018-11-10 08:48:09,647 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,648 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:48:09,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,653 INFO L82 PathProgramCache]: Analyzing trace with hash -264250276, now seen corresponding path program 2 times [2018-11-10 08:48:09,653 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:48:09,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:48:09,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,654 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:48:09,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:48:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:48:09,682 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,682 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,682 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,682 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,682 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:48:09,682 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,682 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,682 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,683 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-10 08:48:09,683 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,683 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,742 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,742 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,745 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:48:09,745 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_24b4b939-f288-4c27-8684-7bfde0a55608/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,762 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:48:09,762 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:48:09,779 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:48:09,780 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:48:09,780 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:48:09,780 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:48:09,780 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:48:09,781 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:48:09,781 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:48:09,781 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:48:09,781 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:48:09,781 INFO L131 ssoRankerPreferences]: Filename of dumped script: Pure2Phase_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-10 08:48:09,781 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:48:09,781 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:48:09,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,790 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:48:09,818 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:48:09,818 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:48:09,818 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:48:09,819 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:48:09,819 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:48:09,819 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:48:09,819 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:48:09,819 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:48:09,820 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:48:09,820 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:48:09,822 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:48:09,824 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:48:09,824 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:48:09,825 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:48:09,825 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:48:09,825 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:48:09,826 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2018-11-10 08:48:09,826 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:48:09,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:09,857 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:09,857 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-10 08:48:09,864 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 32 transitions. Complement of second has 7 states. [2018-11-10 08:48:09,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:09,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:09,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 08:48:09,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 08:48:09,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,867 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:48:09,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:09,889 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:09,889 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-10 08:48:09,896 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 27 states and 32 transitions. Complement of second has 7 states. [2018-11-10 08:48:09,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:09,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 08:48:09,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 08:48:09,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,897 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:48:09,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:48:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:48:09,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:48:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:48:09,921 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:48:09,921 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-10 08:48:09,928 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 28 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 32 states and 38 transitions. Complement of second has 6 states. [2018-11-10 08:48:09,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:48:09,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:48:09,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 08:48:09,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 08:48:09,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-10 08:48:09,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,930 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-10 08:48:09,930 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:48:09,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 38 transitions. [2018-11-10 08:48:09,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:48:09,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2018-11-10 08:48:09,932 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:48:09,932 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:48:09,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:48:09,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:48:09,933 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:48:09,933 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:48:09,933 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:48:09,933 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 08:48:09,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:48:09,933 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:48:09,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:48:09,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:48:09 BoogieIcfgContainer [2018-11-10 08:48:09,938 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:48:09,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:48:09,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:48:09,939 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:48:09,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:48:08" (3/4) ... [2018-11-10 08:48:09,942 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:48:09,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:48:09,942 INFO L168 Benchmark]: Toolchain (without parser) took 2003.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 960.3 MB in the beginning and 874.7 MB in the end (delta: 85.6 MB). Peak memory consumption was 218.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:48:09,943 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:48:09,944 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.78 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:48:09,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:48:09,944 INFO L168 Benchmark]: Boogie Preprocessor took 13.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:48:09,945 INFO L168 Benchmark]: RCFGBuilder took 180.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:48:09,945 INFO L168 Benchmark]: BuchiAutomizer took 1646.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.7 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:48:09,945 INFO L168 Benchmark]: Witness Printer took 3.14 ms. Allocated memory is still 1.2 GB. Free memory is still 874.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:48:09,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.78 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.45 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -176.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1646.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.7 MB in the end (delta: 248.3 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.14 ms. Allocated memory is still 1.2 GB. Free memory is still 874.7 MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * z + 1 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function 2 * z + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * z + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 23 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 68 SDtfs, 63 SDslu, 20 SDs, 0 SdLazy, 36 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf113 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...