./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileSingle_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileSingle_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 d930bfd65ed5d5f664b4fae9868151a005b1916b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 18:55:30,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:55:30,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:55:30,911 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:55:30,911 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:55:30,912 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:55:30,912 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:55:30,913 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:55:30,914 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:55:30,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:55:30,915 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:55:30,915 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:55:30,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:55:30,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:55:30,916 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:55:30,917 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:55:30,917 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:55:30,918 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:55:30,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:55:30,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:55:30,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:55:30,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:55:30,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:55:30,922 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:55:30,922 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:55:30,922 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:55:30,922 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:55:30,923 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:55:30,923 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:55:30,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:55:30,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:55:30,924 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:55:30,924 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:55:30,924 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:55:30,925 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:55:30,925 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:55:30,925 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 18:55:30,933 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:55:30,933 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:55:30,933 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 18:55:30,934 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 18:55:30,934 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 18:55:30,934 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 18:55:30,935 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 18:55:30,935 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 18:55:30,936 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:55:30,936 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 18:55:30,936 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 18:55:30,936 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 18:55:30,936 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_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 -> d930bfd65ed5d5f664b4fae9868151a005b1916b [2018-12-01 18:55:30,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:55:30,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:55:30,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:55:30,962 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:55:30,963 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:55:30,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/WhileSingle_false-termination_true-no-overflow.c [2018-12-01 18:55:30,998 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/data/145beff42/a6d3d1eaf21449df8ec1b3468adc88a7/FLAGd3d02ad4d [2018-12-01 18:55:31,289 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:55:31,289 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/sv-benchmarks/c/termination-restricted-15/WhileSingle_false-termination_true-no-overflow.c [2018-12-01 18:55:31,293 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/data/145beff42/a6d3d1eaf21449df8ec1b3468adc88a7/FLAGd3d02ad4d [2018-12-01 18:55:31,301 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/data/145beff42/a6d3d1eaf21449df8ec1b3468adc88a7 [2018-12-01 18:55:31,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:55:31,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 18:55:31,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:55:31,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:55:31,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:55:31,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dd40c7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31, skipping insertion in model container [2018-12-01 18:55:31,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,312 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:55:31,320 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:55:31,401 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:55:31,403 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:55:31,411 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:55:31,419 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:55:31,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31 WrapperNode [2018-12-01 18:55:31,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:55:31,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 18:55:31,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 18:55:31,420 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 18:55:31,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,437 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 18:55:31,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:55:31,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:55:31,438 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:55:31,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... [2018-12-01 18:55:31,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:55:31,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:55:31,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:55:31,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:55:31,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 [2018-12-01 18:55:31,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:55:31,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:55:31,578 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:55:31,578 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-01 18:55:31,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:55:31 BoogieIcfgContainer [2018-12-01 18:55:31,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:55:31,579 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 18:55:31,579 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 18:55:31,581 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 18:55:31,582 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:55:31,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 06:55:31" (1/3) ... [2018-12-01 18:55:31,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4adba168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 06:55:31, skipping insertion in model container [2018-12-01 18:55:31,583 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:55:31,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:55:31" (2/3) ... [2018-12-01 18:55:31,583 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4adba168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 06:55:31, skipping insertion in model container [2018-12-01 18:55:31,583 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:55:31,583 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:55:31" (3/3) ... [2018-12-01 18:55:31,584 INFO L375 chiAutomizerObserver]: Analyzing ICFG WhileSingle_false-termination_true-no-overflow.c [2018-12-01 18:55:31,615 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 18:55:31,615 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 18:55:31,615 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 18:55:31,615 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 18:55:31,615 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 18:55:31,615 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 18:55:31,616 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 18:55:31,616 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 18:55:31,616 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 18:55:31,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-01 18:55:31,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 18:55:31,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 18:55:31,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 18:55:31,638 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 18:55:31,638 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 18:55:31,639 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 18:55:31,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-01 18:55:31,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 18:55:31,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 18:55:31,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 18:55:31,639 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-01 18:55:31,639 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 18:55:31,644 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2018-12-01 18:55:31,644 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 10); 4#L10true assume 3 != main_~i~0;main_~i~0 := 1 + main_~i~0; 8#L10-2true [2018-12-01 18:55:31,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:31,647 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-01 18:55:31,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:31,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:31,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:31,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:31,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-01 18:55:31,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:31,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:31,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:31,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:31,714 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-01 18:55:31,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:31,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:31,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:31,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:31,749 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 18:55:31,750 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 18:55:31,750 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 18:55:31,750 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 18:55:31,750 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-01 18:55:31,750 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 18:55:31,751 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 18:55:31,751 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 18:55:31,751 INFO L131 ssoRankerPreferences]: Filename of dumped script: WhileSingle_false-termination_true-no-overflow.c_Iteration1_Loop [2018-12-01 18:55:31,751 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 18:55:31,751 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 18:55:31,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:31,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:31,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:31,862 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 18:55:31,863 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 [2018-12-01 18:55:31,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 18:55:31,868 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 18:55:31,890 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 18:55:31,890 INFO L448 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_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 [2018-12-01 18:55:31,893 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 18:55:31,893 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 18:55:31,908 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-01 18:55:31,908 INFO L448 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_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 [2018-12-01 18:55:31,910 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-01 18:55:31,910 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/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 [2018-12-01 18:55:31,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-01 18:55:31,929 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-01 18:55:31,952 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-01 18:55:31,953 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 18:55:31,953 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 18:55:31,953 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 18:55:31,953 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 18:55:31,953 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 18:55:31,953 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 18:55:31,953 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 18:55:31,953 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 18:55:31,953 INFO L131 ssoRankerPreferences]: Filename of dumped script: WhileSingle_false-termination_true-no-overflow.c_Iteration1_Loop [2018-12-01 18:55:31,953 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 18:55:31,953 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 18:55:31,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:31,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:31,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 18:55:32,011 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 18:55:32,014 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 18:55:32,015 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 [2018-12-01 18:55:32,016 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:55:32,016 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:55:32,016 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:55:32,016 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:55:32,019 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:55:32,019 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:55:32,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:55:32,024 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 [2018-12-01 18:55:32,024 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:55:32,024 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:55:32,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:55:32,024 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:55:32,025 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:55:32,026 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:55:32,030 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:55:32,030 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 [2018-12-01 18:55:32,031 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:55:32,031 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:55:32,031 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:55:32,031 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-01 18:55:32,031 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:55:32,032 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-01 18:55:32,032 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:55:32,038 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 18:55:32,042 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-01 18:55:32,042 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-01 18:55:32,043 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 18:55:32,043 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-01 18:55:32,044 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 18:55:32,044 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 19 Supporting invariants [] [2018-12-01 18:55:32,045 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-01 18:55:32,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:55:32,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:55:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:55:32,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:55:32,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 18:55:32,097 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 [2018-12-01 18:55:32,098 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-12-01 18:55:32,134 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2018-12-01 18:55:32,134 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 [2018-12-01 18:55:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 18:55:32,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2018-12-01 18:55:32,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-01 18:55:32,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:55:32,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-01 18:55:32,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:55:32,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-01 18:55:32,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:55:32,138 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2018-12-01 18:55:32,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 18:55:32,142 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2018-12-01 18:55:32,143 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-01 18:55:32,143 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-01 18:55:32,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-12-01 18:55:32,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-01 18:55:32,144 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-01 18:55:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-12-01 18:55:32,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-01 18:55:32,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-01 18:55:32,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-01 18:55:32,159 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-01 18:55:32,159 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-01 18:55:32,159 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 18:55:32,159 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-01 18:55:32,160 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 18:55:32,160 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 18:55:32,160 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 18:55:32,160 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-01 18:55:32,160 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 18:55:32,160 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 < 10); 63#L10 [2018-12-01 18:55:32,160 INFO L796 eck$LassoCheckResult]: Loop: 63#L10 assume !(3 != main_~i~0); 64#L10-2 assume !!(main_~i~0 < 10); 63#L10 [2018-12-01 18:55:32,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:32,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-01 18:55:32,160 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:32,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:32,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:32,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,164 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:32,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2018-12-01 18:55:32,164 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:32,164 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:32,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,165 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:32,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:55:32,168 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2018-12-01 18:55:32,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:55:32,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:55:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:55:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:55:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:55:32,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 06:55:32 BoogieIcfgContainer [2018-12-01 18:55:32,189 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 18:55:32,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:55:32,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:55:32,189 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:55:32,189 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:55:31" (3/4) ... [2018-12-01 18:55:32,191 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 18:55:32,213 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49f92d5a-406a-4bc6-9a70-51c178c00d14/bin-2019/uautomizer/witness.graphml [2018-12-01 18:55:32,213 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:55:32,214 INFO L168 Benchmark]: Toolchain (without parser) took 910.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 956.0 MB in the beginning and 1.0 GB in the end (delta: -81.4 MB). Peak memory consumption was 75.9 MB. Max. memory is 11.5 GB. [2018-12-01 18:55:32,214 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:55:32,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.78 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-01 18:55:32,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.95 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:55:32,215 INFO L168 Benchmark]: Boogie Preprocessor took 10.20 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:55:32,215 INFO L168 Benchmark]: RCFGBuilder took 130.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-01 18:55:32,216 INFO L168 Benchmark]: BuchiAutomizer took 609.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.1 MB). Peak memory consumption was 98.1 MB. Max. memory is 11.5 GB. [2018-12-01 18:55:32,216 INFO L168 Benchmark]: Witness Printer took 24.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-12-01 18:55:32,218 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 115.78 ms. Allocated memory is still 1.0 GB. Free memory was 956.0 MB in the beginning and 945.2 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 17.95 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.20 ms. Allocated memory is still 1.0 GB. Free memory is still 945.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 130.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 945.2 MB in the beginning and 1.1 GB in the end (delta: -197.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 609.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 98.1 MB). Peak memory consumption was 98.1 MB. Max. memory is 11.5 GB. * Witness Printer took 24.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 19 and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@736c07a0=0, \result=0, i=3} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i < 10 Loop: [L10] COND FALSE !(i != 3) [L9] COND TRUE i < 10 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...