./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/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 32bit --witnessprinter.graph.data.programhash 76260ed82768318ee6f3ac3cb9cfff5a60080963 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 02:00:29,536 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 02:00:29,538 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 02:00:29,546 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 02:00:29,546 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 02:00:29,547 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 02:00:29,547 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 02:00:29,549 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 02:00:29,550 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 02:00:29,550 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 02:00:29,551 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 02:00:29,551 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 02:00:29,552 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 02:00:29,553 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 02:00:29,553 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 02:00:29,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 02:00:29,555 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 02:00:29,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 02:00:29,557 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 02:00:29,558 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 02:00:29,559 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 02:00:29,560 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 02:00:29,561 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 02:00:29,562 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 02:00:29,562 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 02:00:29,562 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 02:00:29,563 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 02:00:29,564 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 02:00:29,564 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 02:00:29,565 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 02:00:29,565 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 02:00:29,565 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 02:00:29,566 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 02:00:29,566 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 02:00:29,566 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 02:00:29,567 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 02:00:29,567 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 02:00:29,578 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 02:00:29,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 02:00:29,579 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 02:00:29,579 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 02:00:29,579 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 02:00:29,579 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 02:00:29,579 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 02:00:29,580 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 02:00:29,580 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 02:00:29,581 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 02:00:29,582 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 02:00:29,582 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 02:00:29,582 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 02:00:29,582 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 02:00:29,582 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 02:00:29,582 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 02:00:29,583 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 02:00:29,583 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 02:00:29,583 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 02:00:29,583 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 02:00:29,584 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_c817043c-1823-488a-9228-88111d821cbe/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76260ed82768318ee6f3ac3cb9cfff5a60080963 [2018-11-10 02:00:29,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 02:00:29,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 02:00:29,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 02:00:29,620 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 02:00:29,620 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 02:00:29,621 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/../../sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-11-10 02:00:29,659 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/data/d75d7e5fd/b9e1018e511f40b2965f8ed74659d481/FLAG8d1420fee [2018-11-10 02:00:30,048 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 02:00:30,048 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/sv-benchmarks/c/loop-lit/gr2006_true-unreach-call_true-termination.c.i [2018-11-10 02:00:30,053 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/data/d75d7e5fd/b9e1018e511f40b2965f8ed74659d481/FLAG8d1420fee [2018-11-10 02:00:30,061 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/data/d75d7e5fd/b9e1018e511f40b2965f8ed74659d481 [2018-11-10 02:00:30,063 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 02:00:30,064 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 02:00:30,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 02:00:30,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 02:00:30,068 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 02:00:30,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b8b0baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30, skipping insertion in model container [2018-11-10 02:00:30,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 02:00:30,089 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 02:00:30,180 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:00:30,182 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 02:00:30,190 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 02:00:30,198 INFO L193 MainTranslator]: Completed translation [2018-11-10 02:00:30,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30 WrapperNode [2018-11-10 02:00:30,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 02:00:30,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 02:00:30,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 02:00:30,199 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 02:00:30,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 02:00:30,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 02:00:30,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 02:00:30,217 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 02:00:30,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,223 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,228 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... [2018-11-10 02:00:30,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 02:00:30,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 02:00:30,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 02:00:30,229 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 02:00:30,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 02:00:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 02:00:30,415 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 02:00:30,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:00:30 BoogieIcfgContainer [2018-11-10 02:00:30,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 02:00:30,416 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 02:00:30,416 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 02:00:30,419 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 02:00:30,420 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 02:00:30,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 02:00:30" (1/3) ... [2018-11-10 02:00:30,421 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@319c35c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 02:00:30, skipping insertion in model container [2018-11-10 02:00:30,421 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 02:00:30,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 02:00:30" (2/3) ... [2018-11-10 02:00:30,422 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@319c35c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 02:00:30, skipping insertion in model container [2018-11-10 02:00:30,422 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 02:00:30,422 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:00:30" (3/3) ... [2018-11-10 02:00:30,423 INFO L375 chiAutomizerObserver]: Analyzing ICFG gr2006_true-unreach-call_true-termination.c.i [2018-11-10 02:00:30,472 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 02:00:30,473 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 02:00:30,473 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 02:00:30,473 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 02:00:30,473 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 02:00:30,473 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 02:00:30,473 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 02:00:30,473 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 02:00:30,473 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 02:00:30,486 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-10 02:00:30,503 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:30,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 02:00:30,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 02:00:30,509 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 02:00:30,509 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 02:00:30,509 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 02:00:30,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-10 02:00:30,510 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:30,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 02:00:30,510 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 02:00:30,511 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 02:00:30,511 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 02:00:30,517 INFO L793 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 8#L14-3true [2018-11-10 02:00:30,518 INFO L795 eck$LassoCheckResult]: Loop: 8#L14-3true assume true; 11#L14-1true assume !false; 3#L15true assume !(main_~x~0 < 50);main_#t~post2 := main_~y~0;main_~y~0 := main_#t~post2 - 1;havoc main_#t~post2; 12#L15-2true assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 8#L14-3true [2018-11-10 02:00:30,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 02:00:30,524 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:30,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:30,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:30,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:30,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:30,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash 1114349, now seen corresponding path program 1 times [2018-11-10 02:00:30,601 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:30,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:30,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:30,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:30,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:30,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:30,613 INFO L82 PathProgramCache]: Analyzing trace with hash 889541551, now seen corresponding path program 1 times [2018-11-10 02:00:30,613 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:30,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:30,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:30,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:30,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 02:00:30,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 02:00:30,705 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:30,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:30,705 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:30,705 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:30,706 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 02:00:30,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:30,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:30,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:30,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration1_Loop [2018-11-10 02:00:30,706 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:30,706 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:30,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,795 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:30,796 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:30,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:30,803 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:30,823 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:30,823 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:30,876 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 02:00:30,877 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:30,877 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:30,877 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:30,877 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:30,877 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 02:00:30,877 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:30,877 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:30,877 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:30,877 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration1_Loop [2018-11-10 02:00:30,878 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:30,878 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:30,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,883 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,895 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:30,964 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:30,968 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 02:00:30,970 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:30,971 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:30,971 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:30,971 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:30,971 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:30,971 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:30,973 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:30,973 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:30,977 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 02:00:30,981 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 02:00:30,981 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 02:00:30,982 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 02:00:30,982 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 02:00:30,983 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 02:00:30,983 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 02:00:30,984 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 02:00:30,998 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,007 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,038 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:31,039 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2018-11-10 02:00:31,081 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 42 states and 52 transitions. Complement of second has 8 states. [2018-11-10 02:00:31,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 02:00:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 02:00:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2018-11-10 02:00:31,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-10 02:00:31,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-10 02:00:31,086 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 8 letters. [2018-11-10 02:00:31,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,088 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 52 transitions. [2018-11-10 02:00:31,090 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 13 states and 16 transitions. [2018-11-10 02:00:31,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-10 02:00:31,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-10 02:00:31,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 16 transitions. [2018-11-10 02:00:31,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 02:00:31,095 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-10 02:00:31,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 16 transitions. [2018-11-10 02:00:31,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-10 02:00:31,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-10 02:00:31,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-11-10 02:00:31,118 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-10 02:00:31,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 02:00:31,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 02:00:31,121 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 3 states. [2018-11-10 02:00:31,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:00:31,131 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-11-10 02:00:31,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 02:00:31,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 13 transitions. [2018-11-10 02:00:31,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,132 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 11 transitions. [2018-11-10 02:00:31,132 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 02:00:31,132 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-10 02:00:31,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 11 transitions. [2018-11-10 02:00:31,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 02:00:31,133 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-10 02:00:31,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 11 transitions. [2018-11-10 02:00:31,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-11-10 02:00:31,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-10 02:00:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-11-10 02:00:31,134 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 02:00:31,134 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-10 02:00:31,134 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 02:00:31,134 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-11-10 02:00:31,134 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,134 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 02:00:31,134 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 02:00:31,134 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 02:00:31,134 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 02:00:31,134 INFO L793 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 127#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 128#L14-3 assume true; 135#L14-1 assume !false; 129#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 130#L15-2 [2018-11-10 02:00:31,135 INFO L795 eck$LassoCheckResult]: Loop: 130#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 132#L14-3 assume true; 133#L14-1 assume !false; 134#L15 assume !(main_~x~0 < 50);main_#t~post2 := main_~y~0;main_~y~0 := main_#t~post2 - 1;havoc main_#t~post2; 130#L15-2 [2018-11-10 02:00:31,135 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,135 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 02:00:31,135 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:31,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1614869, now seen corresponding path program 2 times [2018-11-10 02:00:31,139 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:31,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,144 INFO L82 PathProgramCache]: Analyzing trace with hash 382288634, now seen corresponding path program 1 times [2018-11-10 02:00:31,144 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,145 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 02:00:31,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,170 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,170 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 02:00:31,170 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 02:00:31,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,180 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,207 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 02:00:31,208 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-10 02:00:31,221 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:31,221 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:31,221 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:31,221 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:31,221 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 02:00:31,221 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,221 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:31,221 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:31,221 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-10 02:00:31,221 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:31,221 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:31,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,229 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,257 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:31,257 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,259 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,259 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,264 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:31,264 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,279 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,283 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:31,283 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,298 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,316 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:31,316 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,329 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:31,329 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=49} Honda state: {ULTIMATE.start_main_~x~0=49} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}] Lambdas: [9, 4, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,345 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:31,362 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,379 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 02:00:31,380 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:31,380 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:31,380 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:31,380 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:31,380 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 02:00:31,380 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,381 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:31,381 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:31,381 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration2_Loop [2018-11-10 02:00:31,381 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:31,381 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:31,382 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,417 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:31,417 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 02:00:31,417 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,418 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,418 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,418 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,418 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,419 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,419 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,421 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,422 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,422 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,423 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,423 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,424 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,425 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,425 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,425 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,425 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,426 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,426 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,430 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,430 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,434 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,435 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,436 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,436 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,436 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,440 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 02:00:31,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 02:00:31,442 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 02:00:31,443 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 02:00:31,443 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 02:00:31,443 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 02:00:31,443 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2018-11-10 02:00:31,443 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 02:00:31,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,490 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,502 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:31,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 02:00:31,515 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 17 states and 20 transitions. Complement of second has 5 states. [2018-11-10 02:00:31,518 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 [2018-11-10 02:00:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 02:00:31,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-10 02:00:31,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-10 02:00:31,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,518 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 02:00:31,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,519 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-10 02:00:31,519 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2018-11-10 02:00:31,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,522 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 20 transitions. [2018-11-10 02:00:31,523 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-10 02:00:31,523 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-10 02:00:31,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 20 transitions. [2018-11-10 02:00:31,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 02:00:31,523 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-10 02:00:31,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 20 transitions. [2018-11-10 02:00:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 02:00:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 02:00:31,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-11-10 02:00:31,525 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-10 02:00:31,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 02:00:31,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 02:00:31,526 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2018-11-10 02:00:31,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:00:31,539 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-10 02:00:31,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 02:00:31,540 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2018-11-10 02:00:31,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,541 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 15 transitions. [2018-11-10 02:00:31,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-10 02:00:31,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-10 02:00:31,541 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 15 transitions. [2018-11-10 02:00:31,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 02:00:31,541 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-10 02:00:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 15 transitions. [2018-11-10 02:00:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-10 02:00:31,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-10 02:00:31,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2018-11-10 02:00:31,543 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-10 02:00:31,543 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 14 transitions. [2018-11-10 02:00:31,543 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 02:00:31,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 14 transitions. [2018-11-10 02:00:31,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 02:00:31,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 02:00:31,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 02:00:31,544 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-11-10 02:00:31,544 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 02:00:31,544 INFO L793 eck$LassoCheckResult]: Stem: 265#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 263#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 264#L14-3 assume true; 273#L14-1 assume !false; 272#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 268#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 266#L14-3 assume true; 267#L14-1 assume !false; 261#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 262#L15-2 [2018-11-10 02:00:31,545 INFO L795 eck$LassoCheckResult]: Loop: 262#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 271#L14-3 assume true; 270#L14-1 assume !false; 269#L15 assume !(main_~x~0 < 50);main_#t~post2 := main_~y~0;main_~y~0 := main_#t~post2 - 1;havoc main_#t~post2; 262#L15-2 [2018-11-10 02:00:31,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,545 INFO L82 PathProgramCache]: Analyzing trace with hash 382288632, now seen corresponding path program 1 times [2018-11-10 02:00:31,545 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:31,546 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,554 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1614869, now seen corresponding path program 3 times [2018-11-10 02:00:31,554 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:31,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:31,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,560 INFO L82 PathProgramCache]: Analyzing trace with hash 973706124, now seen corresponding path program 2 times [2018-11-10 02:00:31,561 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:31,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:31,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,561 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 02:00:31,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:31,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,589 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,589 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 02:00:31,589 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 02:00:31,602 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-10 02:00:31,612 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-10 02:00:31,612 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 02:00:31,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,616 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,641 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 02:00:31,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-10 02:00:31,655 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:31,655 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:31,655 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:31,655 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:31,655 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 02:00:31,655 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,655 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:31,655 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:31,655 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration3_Loop [2018-11-10 02:00:31,656 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:31,656 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:31,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,743 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:31,743 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,746 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,746 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,751 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:31,751 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,767 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,767 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:31,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,803 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:31,803 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=49} Honda state: {ULTIMATE.start_main_~x~0=49} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=1}] Lambdas: [9, 4, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,819 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:31,819 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:31,836 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:31,853 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 02:00:31,854 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:31,854 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:31,854 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:31,854 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:31,854 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 02:00:31,854 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:31,854 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:31,854 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:31,855 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration3_Loop [2018-11-10 02:00:31,855 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:31,855 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:31,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,862 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:31,885 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:31,885 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 02:00:31,886 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,887 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,887 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,887 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,888 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,889 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,889 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,890 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,890 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,890 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,893 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,894 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,894 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,894 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,895 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,895 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,896 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:31,896 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:31,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:31,897 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:31,897 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:31,897 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:31,897 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:31,898 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:31,898 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:31,900 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 02:00:31,901 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 02:00:31,901 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 02:00:31,902 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 02:00:31,902 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 02:00:31,902 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 02:00:31,902 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2018-11-10 02:00:31,902 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 02:00:31,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,938 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,947 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:31,948 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 02:00:31,953 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 16 states and 17 transitions. Complement of second has 5 states. [2018-11-10 02:00:31,954 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 [2018-11-10 02:00:31,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 02:00:31,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-10 02:00:31,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 02:00:31,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,955 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 02:00:31,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:31,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:31,980 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:31,981 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 02:00:31,986 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 16 states and 17 transitions. Complement of second has 5 states. [2018-11-10 02:00:31,987 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 [2018-11-10 02:00:31,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 02:00:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-10 02:00:31,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 02:00:31,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:31,987 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 02:00:32,005 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:32,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:32,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:32,018 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:32,018 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-10 02:00:32,035 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 14 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 20 states and 22 transitions. Complement of second has 4 states. [2018-11-10 02:00:32,035 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 [2018-11-10 02:00:32,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 02:00:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-10 02:00:32,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 02:00:32,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-10 02:00:32,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-10 02:00:32,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-11-10 02:00:32,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-10 02:00:32,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 19 transitions. [2018-11-10 02:00:32,038 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 02:00:32,038 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-10 02:00:32,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 19 transitions. [2018-11-10 02:00:32,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 02:00:32,038 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-10 02:00:32,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 19 transitions. [2018-11-10 02:00:32,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-11-10 02:00:32,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 02:00:32,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-11-10 02:00:32,040 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-10 02:00:32,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 02:00:32,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 02:00:32,040 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 5 states. [2018-11-10 02:00:32,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 02:00:32,060 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2018-11-10 02:00:32,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 02:00:32,061 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 28 transitions. [2018-11-10 02:00:32,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-10 02:00:32,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 22 states and 25 transitions. [2018-11-10 02:00:32,062 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-10 02:00:32,062 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-11-10 02:00:32,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 25 transitions. [2018-11-10 02:00:32,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 02:00:32,062 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-10 02:00:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 25 transitions. [2018-11-10 02:00:32,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-11-10 02:00:32,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 02:00:32,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-10 02:00:32,064 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 02:00:32,064 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-10 02:00:32,065 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 02:00:32,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 20 transitions. [2018-11-10 02:00:32,065 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-10 02:00:32,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 02:00:32,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 02:00:32,065 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1] [2018-11-10 02:00:32,065 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 02:00:32,065 INFO L793 eck$LassoCheckResult]: Stem: 559#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 557#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~post1, main_#t~post2, main_#t~post3, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := 0;main_~y~0 := 0; 558#L14-3 assume true; 570#L14-1 assume !false; 569#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 564#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 560#L14-3 assume true; 561#L14-1 assume !false; 553#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 554#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 565#L14-3 [2018-11-10 02:00:32,066 INFO L795 eck$LassoCheckResult]: Loop: 565#L14-3 assume true; 568#L14-1 assume !false; 567#L15 assume main_~x~0 < 50;main_#t~post1 := main_~y~0;main_~y~0 := main_#t~post1 + 1;havoc main_#t~post1; 566#L15-2 assume !(main_~y~0 < 0);main_#t~post3 := main_~x~0;main_~x~0 := main_#t~post3 + 1;havoc main_#t~post3; 565#L14-3 [2018-11-10 02:00:32,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:32,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1033954273, now seen corresponding path program 2 times [2018-11-10 02:00:32,066 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:32,066 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:32,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,066 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 02:00:32,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:32,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1114287, now seen corresponding path program 1 times [2018-11-10 02:00:32,071 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:32,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:32,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,072 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 02:00:32,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:32,075 INFO L82 PathProgramCache]: Analyzing trace with hash 120118733, now seen corresponding path program 3 times [2018-11-10 02:00:32,075 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 02:00:32,075 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 02:00:32,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 02:00:32,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 02:00:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 02:00:32,116 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:32,116 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:32,116 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:32,116 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:32,116 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 02:00:32,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:32,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:32,117 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-10 02:00:32,117 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:32,117 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:32,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,142 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:32,142 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:32,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:32,147 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:32,148 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post3=0} Honda state: {ULTIMATE.start_main_#t~post3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,164 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:32,164 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:32,182 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:32,213 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 02:00:32,213 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=-1} Honda state: {ULTIMATE.start_main_~y~0=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=0}, {ULTIMATE.start_main_~y~0=1}] Lambdas: [10, 2, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 02:00:32,229 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c817043c-1823-488a-9228-88111d821cbe/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 02:00:32,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 02:00:32,277 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 02:00:32,278 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 02:00:32,278 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 02:00:32,279 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 02:00:32,279 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 02:00:32,279 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 02:00:32,279 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 02:00:32,279 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 02:00:32,279 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 02:00:32,279 INFO L131 ssoRankerPreferences]: Filename of dumped script: gr2006_true-unreach-call_true-termination.c.i_Iteration4_Loop [2018-11-10 02:00:32,279 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 02:00:32,279 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 02:00:32,280 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,288 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 02:00:32,305 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 02:00:32,305 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 02:00:32,305 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:32,305 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:32,305 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:32,305 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:32,306 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:32,306 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:32,306 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:32,306 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:32,308 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:32,308 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:32,308 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:32,308 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:32,308 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:32,308 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:32,308 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:32,309 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:32,309 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:32,311 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 02:00:32,311 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 02:00:32,311 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 02:00:32,311 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 02:00:32,311 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 02:00:32,311 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 02:00:32,311 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 02:00:32,312 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 02:00:32,312 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 02:00:32,313 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 02:00:32,314 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 02:00:32,314 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 02:00:32,315 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 02:00:32,315 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 02:00:32,315 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 02:00:32,315 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 99 Supporting invariants [] [2018-11-10 02:00:32,315 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 02:00:32,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 02:00:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:32,334 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 02:00:32,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 02:00:32,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 02:00:32,343 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 02:00:32,343 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 02:00:32,354 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 20 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 33 states and 37 transitions. Complement of second has 6 states. [2018-11-10 02:00:32,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 02:00:32,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 02:00:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 02:00:32,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-10 02:00:32,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-10 02:00:32,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 8 letters. [2018-11-10 02:00:32,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 02:00:32,356 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 37 transitions. [2018-11-10 02:00:32,357 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 02:00:32,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2018-11-10 02:00:32,357 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 02:00:32,357 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 02:00:32,357 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 02:00:32,357 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 02:00:32,357 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 02:00:32,357 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 02:00:32,357 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 02:00:32,357 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 02:00:32,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 02:00:32,358 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 02:00:32,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 02:00:32,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 02:00:32 BoogieIcfgContainer [2018-11-10 02:00:32,362 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 02:00:32,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 02:00:32,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 02:00:32,363 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 02:00:32,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 02:00:30" (3/4) ... [2018-11-10 02:00:32,365 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 02:00:32,365 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 02:00:32,366 INFO L168 Benchmark]: Toolchain (without parser) took 2302.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -138.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:00:32,367 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:00:32,367 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.82 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 02:00:32,368 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:00:32,368 INFO L168 Benchmark]: Boogie Preprocessor took 10.99 ms. Allocated memory is still 1.0 GB. Free memory was 943.9 MB in the beginning and 941.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 02:00:32,368 INFO L168 Benchmark]: RCFGBuilder took 187.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 02:00:32,369 INFO L168 Benchmark]: BuchiAutomizer took 1946.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2018-11-10 02:00:32,369 INFO L168 Benchmark]: Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 02:00:32,371 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.82 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 943.9 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.99 ms. Allocated memory is still 1.0 GB. Free memory was 943.9 MB in the beginning and 941.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 187.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1946.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. One deterministic module has affine ranking function -2 * x + 99 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * y + 1 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 63 SDtfs, 65 SDslu, 37 SDs, 0 SdLazy, 61 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT3 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf91 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...