./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-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_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:45:58,899 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:45:58,900 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:45:58,906 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:45:58,906 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:45:58,907 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:45:58,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:45:58,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:45:58,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:45:58,909 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:45:58,910 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:45:58,910 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:45:58,911 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:45:58,911 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:45:58,912 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:45:58,912 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:45:58,913 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:45:58,913 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:45:58,914 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:45:58,915 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:45:58,916 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:45:58,916 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:45:58,918 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:45:58,918 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:45:58,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:45:58,918 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:45:58,919 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:45:58,919 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:45:58,920 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:45:58,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:45:58,921 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:45:58,921 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:45:58,921 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:45:58,921 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:45:58,922 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:45:58,922 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:45:58,922 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 00:45:58,930 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:45:58,931 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:45:58,931 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 00:45:58,931 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 00:45:58,932 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 00:45:58,932 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 00:45:58,932 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 00:45:58,933 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 00:45:58,934 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 00:45:58,934 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:45:58,934 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:45:58,934 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 00:45:58,934 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:45:58,934 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 00:45:58,934 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 00:45:58,935 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 00:45:58,935 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_cc42f171-6895-44e4-8759-42af0198b141/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 -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2018-12-09 00:45:58,952 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:45:58,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:45:58,961 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:45:58,962 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:45:58,962 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:45:58,963 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-12-09 00:45:58,998 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/data/3af6c2186/cd53b3f7f4d443da96ac0b268102dd0a/FLAGa8de7baa3 [2018-12-09 00:45:59,407 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:45:59,408 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-12-09 00:45:59,411 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/data/3af6c2186/cd53b3f7f4d443da96ac0b268102dd0a/FLAGa8de7baa3 [2018-12-09 00:45:59,419 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/data/3af6c2186/cd53b3f7f4d443da96ac0b268102dd0a [2018-12-09 00:45:59,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:45:59,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:45:59,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:45:59,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:45:59,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:45:59,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@753418dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59, skipping insertion in model container [2018-12-09 00:45:59,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:45:59,439 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:45:59,521 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:45:59,523 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:45:59,531 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:45:59,538 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:45:59,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59 WrapperNode [2018-12-09 00:45:59,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:45:59,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:45:59,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:45:59,539 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:45:59,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,548 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,557 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:45:59,558 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:45:59,558 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:45:59,558 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:45:59,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... [2018-12-09 00:45:59,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:45:59,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:45:59,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:45:59,568 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:45:59,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:45:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:45:59,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:45:59,692 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:45:59,693 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 00:45:59,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:45:59 BoogieIcfgContainer [2018-12-09 00:45:59,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:45:59,693 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 00:45:59,693 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 00:45:59,695 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 00:45:59,696 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:45:59,696 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 12:45:59" (1/3) ... [2018-12-09 00:45:59,696 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3365b5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:45:59, skipping insertion in model container [2018-12-09 00:45:59,697 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:45:59,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:45:59" (2/3) ... [2018-12-09 00:45:59,697 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3365b5b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 12:45:59, skipping insertion in model container [2018-12-09 00:45:59,697 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 00:45:59,697 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:45:59" (3/3) ... [2018-12-09 00:45:59,698 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c [2018-12-09 00:45:59,728 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 00:45:59,729 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 00:45:59,729 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 00:45:59,729 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 00:45:59,729 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:45:59,729 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:45:59,729 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 00:45:59,729 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:45:59,729 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 00:45:59,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 00:45:59,748 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:45:59,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:45:59,748 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:45:59,752 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 00:45:59,752 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 00:45:59,752 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 00:45:59,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 00:45:59,753 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 00:45:59,753 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:45:59,753 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:45:59,753 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 00:45:59,753 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 00:45:59,757 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2018-12-09 00:45:59,757 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 6#L19-2true assume !(main_~j~0 > 0); 5#L19-3true main_~i~0 := main_~i~0 - 1; 3#L17-2true [2018-12-09 00:45:59,761 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:45:59,761 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-09 00:45:59,762 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:45:59,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:45:59,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:45:59,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:45:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:45:59,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:45:59,816 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-09 00:45:59,816 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:45:59,817 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:45:59,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:45:59,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:45:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:45:59,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:45:59,824 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2018-12-09 00:45:59,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:45:59,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:45:59,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:45:59,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:45:59,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:45:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:45:59,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:45:59,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:45:59,903 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:45:59,904 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:45:59,904 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:45:59,904 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:45:59,904 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:45:59,904 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:45:59,904 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:45:59,904 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:45:59,905 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 00:45:59,905 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:45:59,905 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:45:59,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:45:59,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:45:59,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:45:59,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:45:59,990 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:45:59,991 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:45:59,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:45:59,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,022 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:46:00,022 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_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:46:00,025 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,025 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,041 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:46:00,041 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_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:46:00,043 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,043 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,047 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:46:00,047 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~N~0=0} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~N~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:46:00,062 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,062 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/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 [2018-12-09 00:46:00,078 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:46:00,078 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,094 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:46:00,095 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:46:00,095 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:46:00,095 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:46:00,095 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:46:00,095 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:46:00,096 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,096 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:46:00,096 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:46:00,096 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-09 00:46:00,096 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:46:00,096 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:46:00,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,146 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:46:00,149 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:46:00,150 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 [2018-12-09 00:46:00,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,151 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,154 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:46:00,154 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:46:00,157 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:46:00,158 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 [2018-12-09 00:46:00,158 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,158 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:46:00,158 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,158 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,159 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,159 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:46:00,159 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:46:00,160 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:46:00,161 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 [2018-12-09 00:46:00,161 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,161 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,161 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,161 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,162 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:46:00,162 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:46:00,167 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:46:00,167 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 [2018-12-09 00:46:00,167 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,167 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:46:00,168 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,168 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,168 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,168 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:46:00,168 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:46:00,171 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:46:00,173 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:46:00,173 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:46:00,174 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:46:00,174 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:46:00,175 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:46:00,175 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-09 00:46:00,176 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:46:00,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,204 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,227 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 [2018-12-09 00:46:00,229 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-12-09 00:46:00,261 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2018-12-09 00:46:00,261 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 [2018-12-09 00:46:00,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 00:46:00,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2018-12-09 00:46:00,263 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2018-12-09 00:46:00,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2018-12-09 00:46:00,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2018-12-09 00:46:00,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2018-12-09 00:46:00,267 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 00:46:00,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-12-09 00:46:00,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-09 00:46:00,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-09 00:46:00,271 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-09 00:46:00,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:46:00,271 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-09 00:46:00,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-09 00:46:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-12-09 00:46:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-09 00:46:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2018-12-09 00:46:00,287 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2018-12-09 00:46:00,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:46:00,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:46:00,289 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2018-12-09 00:46:00,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:46:00,317 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2018-12-09 00:46:00,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:46:00,318 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2018-12-09 00:46:00,319 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-12-09 00:46:00,319 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2018-12-09 00:46:00,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-09 00:46:00,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-09 00:46:00,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2018-12-09 00:46:00,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:46:00,319 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-12-09 00:46:00,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2018-12-09 00:46:00,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-12-09 00:46:00,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-09 00:46:00,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-09 00:46:00,320 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-09 00:46:00,320 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-09 00:46:00,320 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 00:46:00,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-09 00:46:00,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 00:46:00,321 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:46:00,321 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:46:00,321 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 00:46:00,321 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 00:46:00,321 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2018-12-09 00:46:00,321 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2018-12-09 00:46:00,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-09 00:46:00,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:46:00,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:46:00,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,325 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-09 00:46:00,325 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:46:00,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:46:00,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,329 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-09 00:46:00,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:46:00,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:46:00,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,344 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:46:00,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:46:00,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:46:00,344 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:46:00,344 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:46:00,345 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,345 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:46:00,345 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:46:00,345 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 00:46:00,345 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:46:00,345 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:46:00,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,378 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:46:00,378 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,380 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,394 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:46:00,394 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_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,397 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:46:00,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,428 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:46:00,429 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:46:00,429 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:46:00,429 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:46:00,429 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:46:00,429 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:46:00,429 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,430 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:46:00,430 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:46:00,430 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-09 00:46:00,430 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:46:00,430 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:46:00,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,459 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:46:00,459 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:46:00,459 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 [2018-12-09 00:46:00,460 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,460 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,460 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,460 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,462 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:46:00,462 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:46:00,464 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:46:00,465 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 [2018-12-09 00:46:00,465 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,465 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:46:00,465 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,465 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,466 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,466 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:46:00,466 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:46:00,468 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:46:00,471 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:46:00,471 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:46:00,472 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:46:00,472 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:46:00,472 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:46:00,472 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-12-09 00:46:00,472 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:46:00,487 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,493 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 [2018-12-09 00:46:00,493 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2018-12-09 00:46:00,499 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2018-12-09 00:46:00,499 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:46:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 00:46:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-09 00:46:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2018-12-09 00:46:00,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-09 00:46:00,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-12-09 00:46:00,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,500 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2018-12-09 00:46:00,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 00:46:00,501 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2018-12-09 00:46:00,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-09 00:46:00,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-09 00:46:00,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2018-12-09 00:46:00,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 00:46:00,501 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2018-12-09 00:46:00,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2018-12-09 00:46:00,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2018-12-09 00:46:00,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-09 00:46:00,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-12-09 00:46:00,502 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-09 00:46:00,502 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-12-09 00:46:00,502 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 00:46:00,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-12-09 00:46:00,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 00:46:00,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 00:46:00,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 00:46:00,503 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-12-09 00:46:00,503 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 00:46:00,503 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2018-12-09 00:46:00,503 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2018-12-09 00:46:00,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,503 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2018-12-09 00:46:00,503 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:46:00,504 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:46:00,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:46:00,528 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:46:00,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,596 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-09 00:46:00,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-12-09 00:46:00,596 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-09 00:46:00,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,596 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2018-12-09 00:46:00,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 00:46:00,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 00:46:00,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:46:00,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:46:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:46:00,607 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:46:00,607 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:46:00,607 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:46:00,607 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:46:00,607 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 00:46:00,607 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,607 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:46:00,607 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:46:00,607 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 00:46:00,607 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:46:00,608 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:46:00,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,638 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:46:00,638 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,642 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,642 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,660 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 00:46:00,660 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,663 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 00:46:00,663 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cc42f171-6895-44e4-8759-42af0198b141/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,679 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 00:46:00,679 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 00:46:00,695 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 00:46:00,696 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 00:46:00,696 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 00:46:00,696 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 00:46:00,696 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 00:46:00,696 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 00:46:00,697 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 00:46:00,697 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 00:46:00,697 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 00:46:00,697 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-12-09 00:46:00,697 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 00:46:00,697 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 00:46:00,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 00:46:00,736 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 00:46:00,737 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 00:46:00,737 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 [2018-12-09 00:46:00,737 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,737 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,737 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,738 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,738 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 00:46:00,738 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 00:46:00,741 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 00:46:00,741 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 [2018-12-09 00:46:00,741 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 00:46:00,742 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 00:46:00,742 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 00:46:00,742 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 00:46:00,742 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 00:46:00,742 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 00:46:00,742 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 00:46:00,744 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 00:46:00,745 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 00:46:00,745 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 00:46:00,745 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 00:46:00,746 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-09 00:46:00,746 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 00:46:00,746 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-12-09 00:46:00,746 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-09 00:46:00,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,760 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 [2018-12-09 00:46:00,760 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-09 00:46:00,765 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2018-12-09 00:46:00,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:46:00,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 00:46:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-09 00:46:00,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-09 00:46:00,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,766 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 00:46:00,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,778 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-09 00:46:00,778 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-09 00:46:00,782 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2018-12-09 00:46:00,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:46:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 00:46:00,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-12-09 00:46:00,782 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-09 00:46:00,782 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,783 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 00:46:00,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:46:00,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:46:00,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:46:00,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:46:00,796 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-09 00:46:00,796 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-12-09 00:46:00,802 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2018-12-09 00:46:00,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-09 00:46:00,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-12-09 00:46:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-12-09 00:46:00,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2018-12-09 00:46:00,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-09 00:46:00,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-12-09 00:46:00,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 00:46:00,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-12-09 00:46:00,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:46:00,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-12-09 00:46:00,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 00:46:00,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 00:46:00,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 00:46:00,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 00:46:00,804 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:46:00,804 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:46:00,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 00:46:00,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-09 00:46:00,805 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2018-12-09 00:46:00,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:46:00,805 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-09 00:46:00,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:46:00,805 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-12-09 00:46:00,805 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:46:00,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 00:46:00,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 00:46:00,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 00:46:00,806 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 00:46:00,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:46:00,806 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 00:46:00,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 00:46:00,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 12:46:00 BoogieIcfgContainer [2018-12-09 00:46:00,810 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 00:46:00,811 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:46:00,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:46:00,811 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:46:00,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:45:59" (3/4) ... [2018-12-09 00:46:00,813 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 00:46:00,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:46:00,814 INFO L168 Benchmark]: Toolchain (without parser) took 1392.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 953.3 MB in the beginning and 891.8 MB in the end (delta: 61.5 MB). Peak memory consumption was 188.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:46:00,815 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:46:00,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.56 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:46:00,816 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:46:00,816 INFO L168 Benchmark]: Boogie Preprocessor took 10.00 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:46:00,816 INFO L168 Benchmark]: RCFGBuilder took 125.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:46:00,817 INFO L168 Benchmark]: BuchiAutomizer took 1117.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.8 MB in the end (delta: 219.3 MB). Peak memory consumption was 219.3 MB. Max. memory is 11.5 GB. [2018-12-09 00:46:00,817 INFO L168 Benchmark]: Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 891.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:46:00,819 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.56 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.00 ms. Allocated memory is still 1.0 GB. Free memory is still 942.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 125.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -168.5 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1117.08 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.8 MB in the end (delta: 219.3 MB). Peak memory consumption was 219.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.68 ms. Allocated memory is still 1.2 GB. Free memory is still 891.8 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 4 iterations. TraceHistogramMax:2. 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 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 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 [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 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...