./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 e334e85dd18553afecc96b27cf49a003304cbca8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 17:25:54,380 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:25:54,381 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:25:54,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:25:54,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:25:54,389 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:25:54,389 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:25:54,391 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:25:54,392 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:25:54,392 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:25:54,393 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:25:54,393 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:25:54,394 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:25:54,394 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:25:54,395 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:25:54,396 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:25:54,396 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:25:54,398 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:25:54,399 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:25:54,400 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:25:54,401 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:25:54,402 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:25:54,403 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:25:54,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:25:54,404 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:25:54,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:25:54,405 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:25:54,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:25:54,406 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:25:54,407 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:25:54,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:25:54,408 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:25:54,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:25:54,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:25:54,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:25:54,409 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:25:54,409 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 17:25:54,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:25:54,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:25:54,421 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:25:54,421 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:25:54,421 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:25:54,422 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:25:54,422 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:25:54,422 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:25:54,422 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:25:54,422 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:25:54,422 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:25:54,422 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:25:54,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:25:54,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:25:54,424 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:25:54,425 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:25:54,425 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:25:54,425 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:25:54,426 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:25:54,426 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_a3da14af-2199-44c8-98f5-d555bf095fd6/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 -> e334e85dd18553afecc96b27cf49a003304cbca8 [2018-11-18 17:25:54,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:25:54,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:25:54,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:25:54,460 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:25:54,460 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:25:54,460 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 17:25:54,497 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/data/8681ad723/8b1916b2a413459faaba0bf1480edacb/FLAGfaf81494f [2018-11-18 17:25:54,885 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:25:54,886 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 17:25:54,889 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/data/8681ad723/8b1916b2a413459faaba0bf1480edacb/FLAGfaf81494f [2018-11-18 17:25:54,901 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/data/8681ad723/8b1916b2a413459faaba0bf1480edacb [2018-11-18 17:25:54,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:25:54,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:25:54,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:25:54,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:25:54,906 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:25:54,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:25:54" (1/1) ... [2018-11-18 17:25:54,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:54, skipping insertion in model container [2018-11-18 17:25:54,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:25:54" (1/1) ... [2018-11-18 17:25:54,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:25:54,924 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:25:55,017 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:25:55,019 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:25:55,028 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:25:55,035 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:25:55,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55 WrapperNode [2018-11-18 17:25:55,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:25:55,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:25:55,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:25:55,036 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:25:55,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:25:55,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:25:55,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:25:55,062 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:25:55,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... [2018-11-18 17:25:55,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:25:55,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:25:55,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:25:55,077 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:25:55,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:55,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:25:55,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:25:55,254 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:25:55,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:25:55 BoogieIcfgContainer [2018-11-18 17:25:55,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:25:55,255 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:25:55,255 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:25:55,257 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:25:55,258 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:25:55,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:25:54" (1/3) ... [2018-11-18 17:25:55,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30776b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:25:55, skipping insertion in model container [2018-11-18 17:25:55,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:25:55,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:25:55" (2/3) ... [2018-11-18 17:25:55,259 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@30776b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:25:55, skipping insertion in model container [2018-11-18 17:25:55,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:25:55,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:25:55" (3/3) ... [2018-11-18 17:25:55,261 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c [2018-11-18 17:25:55,296 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:25:55,296 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:25:55,296 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:25:55,296 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:25:55,296 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:25:55,297 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:25:55,297 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:25:55,297 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:25:55,297 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:25:55,306 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 17:25:55,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:55,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:25:55,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:25:55,325 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 17:25:55,326 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:25:55,326 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:25:55,326 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 17:25:55,327 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:55,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:25:55,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:25:55,327 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 17:25:55,327 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:25:55,332 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 10#L21-2true [2018-11-18 17:25:55,332 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume true; 11#L20-1true assume !!(main_~v1~0 > 0); 4#L21true assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 10#L21-2true [2018-11-18 17:25:55,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,336 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-18 17:25:55,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:55,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:55,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:55,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-11-18 17:25:55,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:55,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:55,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:55,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,407 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-18 17:25:55,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:55,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:55,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:55,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,472 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:25:55,473 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:25:55,473 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:25:55,473 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:25:55,473 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:25:55,473 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:25:55,473 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:25:55,473 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:25:55,473 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 17:25:55,474 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:25:55,474 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:25:55,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,601 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:25:55,601 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:55,612 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:25:55,612 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:55,643 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:25:55,643 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:25:55,738 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:25:55,739 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:25:55,739 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:25:55,739 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:25:55,740 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:25:55,740 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:25:55,740 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:25:55,740 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:25:55,740 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:25:55,740 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 17:25:55,740 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:25:55,740 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:25:55,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,809 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:25:55,812 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:25:55,813 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 [2018-11-18 17:25:55,814 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:25:55,814 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:25:55,815 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:25:55,815 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:25:55,815 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:25:55,816 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:25:55,816 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:25:55,821 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:25:55,826 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 17:25:55,826 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:25:55,827 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:25:55,828 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:25:55,828 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:25:55,828 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v2~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~v2~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-18 17:25:55,829 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:25:55,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:55,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:25:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:55,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:25:55,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:25:55,880 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 17:25:55,881 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-18 17:25:55,917 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 32 states and 37 transitions. Complement of second has 6 states. [2018-11-18 17:25:55,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 17:25:55,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 17:25:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-18 17:25:55,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-18 17:25:55,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:55,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 17:25:55,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:55,921 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 17:25:55,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:55,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-11-18 17:25:55,923 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:55,925 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-11-18 17:25:55,926 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 17:25:55,927 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 17:25:55,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-18 17:25:55,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:25:55,927 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 17:25:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-18 17:25:55,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 17:25:55,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 17:25:55,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-18 17:25:55,946 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 17:25:55,946 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 17:25:55,946 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:25:55,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-18 17:25:55,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:55,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:25:55,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:25:55,947 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 17:25:55,947 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:25:55,947 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 91#L21-2 assume true; 94#L20-1 assume !!(main_~v1~0 > 0); 86#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 87#L21-2 [2018-11-18 17:25:55,947 INFO L796 eck$LassoCheckResult]: Loop: 87#L21-2 assume true; 92#L20-1 assume !!(main_~v1~0 > 0); 95#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 87#L21-2 [2018-11-18 17:25:55,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,948 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-11-18 17:25:55,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:55,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:55,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:55,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:55,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:25:55,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:25:55,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:25:55,972 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 17:25:55,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:55,972 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-11-18 17:25:55,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:55,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:55,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:55,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:55,990 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:25:55,990 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:25:55,990 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:25:55,990 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:25:55,990 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:25:55,990 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:25:55,991 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:25:55,991 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:25:55,991 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 17:25:55,991 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:25:55,991 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:25:55,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:55,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,054 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:25:56,055 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:56,057 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:25:56,057 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:25:56,074 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:25:56,074 INFO L448 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_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:56,076 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:25:56,076 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/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 [2018-11-18 17:25:56,093 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:25:56,093 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:25:56,109 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:25:56,110 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:25:56,110 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:25:56,110 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:25:56,110 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:25:56,110 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:25:56,110 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:25:56,111 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:25:56,111 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:25:56,111 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 17:25:56,111 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:25:56,111 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:25:56,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:25:56,165 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:25:56,165 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:25:56,166 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 [2018-11-18 17:25:56,166 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:25:56,166 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:25:56,167 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:25:56,167 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:25:56,167 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:25:56,168 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:25:56,168 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:25:56,172 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:25:56,175 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 17:25:56,175 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:25:56,175 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:25:56,175 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:25:56,175 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:25:56,176 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~v1~0) = 1*ULTIMATE.start_main_~v1~0 Supporting invariants [] [2018-11-18 17:25:56,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:25:56,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:56,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:56,200 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:25:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:56,203 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:25:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:25:56,210 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 [2018-11-18 17:25:56,210 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 17:25:56,221 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 19 states and 24 transitions. Complement of second has 6 states. [2018-11-18 17:25:56,222 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 [2018-11-18 17:25:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:25:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-18 17:25:56,222 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 17:25:56,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:56,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 17:25:56,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:56,223 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 17:25:56,223 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:25:56,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2018-11-18 17:25:56,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:56,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 24 transitions. [2018-11-18 17:25:56,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 17:25:56,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 17:25:56,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2018-11-18 17:25:56,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:25:56,224 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2018-11-18 17:25:56,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2018-11-18 17:25:56,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-18 17:25:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 17:25:56,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-18 17:25:56,226 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 17:25:56,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:25:56,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:25:56,228 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand 3 states. [2018-11-18 17:25:56,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:25:56,235 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2018-11-18 17:25:56,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:25:56,235 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 25 transitions. [2018-11-18 17:25:56,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:56,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 19 states and 23 transitions. [2018-11-18 17:25:56,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 17:25:56,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-18 17:25:56,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-11-18 17:25:56,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:25:56,237 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-11-18 17:25:56,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-11-18 17:25:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-18 17:25:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 17:25:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2018-11-18 17:25:56,239 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-11-18 17:25:56,239 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-11-18 17:25:56,239 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:25:56,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2018-11-18 17:25:56,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:25:56,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:25:56,240 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:25:56,240 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1] [2018-11-18 17:25:56,240 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:25:56,240 INFO L794 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 202#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~m~0, main_~n~0, main_~v1~0, main_~v2~0;havoc main_~m~0;havoc main_~n~0;havoc main_~v1~0;havoc main_~v2~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 203#L17 assume main_~n~0 >= 0 && main_~m~0 > 0;main_~v1~0 := main_~n~0;main_~v2~0 := 0; 209#L21-2 assume true; 210#L20-1 assume !!(main_~v1~0 > 0); 206#L21 assume main_~v2~0 < main_~m~0;main_~v2~0 := 1 + main_~v2~0;main_~v1~0 := main_~v1~0 - 1; 207#L21-2 assume true; 214#L20-1 assume !!(main_~v1~0 > 0); 218#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 217#L21-2 assume true; 213#L20-1 [2018-11-18 17:25:56,240 INFO L796 eck$LassoCheckResult]: Loop: 213#L20-1 assume !!(main_~v1~0 > 0); 204#L21 assume !(main_~v2~0 < main_~m~0);main_~v2~0 := 0; 205#L21-2 assume true; 213#L20-1 [2018-11-18 17:25:56,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1148833563, now seen corresponding path program 1 times [2018-11-18 17:25:56,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:56,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:56,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,242 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:25:56,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:56,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:56,251 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 1 times [2018-11-18 17:25:56,252 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:56,252 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:56,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:56,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:56,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:25:56,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:25:56,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1693721535, now seen corresponding path program 2 times [2018-11-18 17:25:56,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:25:56,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:25:56,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:25:56,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:25:56,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:25:56,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 17:25:56,287 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 17:25:56,287 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a3da14af-2199-44c8-98f5-d555bf095fd6/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 17:25:56,293 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 17:25:56,299 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 17:25:56,299 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 17:25:56,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:25:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 17:25:56,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 17:25:56,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2018-11-18 17:25:56,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 17:25:56,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 17:25:56,369 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 7 Second operand 5 states. [2018-11-18 17:25:56,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:25:56,378 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2018-11-18 17:25:56,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 17:25:56,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2018-11-18 17:25:56,379 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 17:25:56,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-11-18 17:25:56,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 17:25:56,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 17:25:56,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 17:25:56,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:25:56,380 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:25:56,380 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:25:56,380 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:25:56,380 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:25:56,380 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:25:56,380 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 17:25:56,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 17:25:56,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:25:56 BoogieIcfgContainer [2018-11-18 17:25:56,385 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:25:56,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:25:56,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:25:56,386 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:25:56,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:25:55" (3/4) ... [2018-11-18 17:25:56,389 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:25:56,389 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:25:56,390 INFO L168 Benchmark]: Toolchain (without parser) took 1486.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 959.1 MB in the beginning and 959.5 MB in the end (delta: -349.2 kB). Peak memory consumption was 127.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:25:56,391 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:25:56,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.92 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:25:56,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.28 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:25:56,393 INFO L168 Benchmark]: Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:25:56,393 INFO L168 Benchmark]: RCFGBuilder took 177.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:25:56,394 INFO L168 Benchmark]: BuchiAutomizer took 1130.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.5 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:25:56,394 INFO L168 Benchmark]: Witness Printer took 3.37 ms. Allocated memory is still 1.2 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:25:56,397 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.92 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 25.28 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.83 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 177.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1130.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 959.5 MB in the end (delta: 151.2 MB). Peak memory consumption was 151.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.37 ms. Allocated memory is still 1.2 GB. Free memory is still 959.5 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 (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * v2 + m and consists of 4 locations. One deterministic module has affine ranking function v1 and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 34 SDtfs, 22 SDslu, 17 SDs, 0 SdLazy, 18 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc1 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax166 hnf100 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 15ms VariablesStem: 0 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...