./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 687269bb6882b72a3d48999f1e5c55a1d5283a94 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:14:28,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:14:28,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:14:28,644 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:14:28,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:14:28,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:14:28,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:14:28,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:14:28,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:14:28,649 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:14:28,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:14:28,650 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:14:28,650 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:14:28,651 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:14:28,651 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:14:28,652 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:14:28,652 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:14:28,653 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:14:28,654 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:14:28,655 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:14:28,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:14:28,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:14:28,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:14:28,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:14:28,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:14:28,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:14:28,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:14:28,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:14:28,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:14:28,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:14:28,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:14:28,661 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:14:28,661 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:14:28,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:14:28,662 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:14:28,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:14:28,663 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 11:14:28,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:14:28,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:14:28,672 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:14:28,673 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:14:28,673 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:14:28,674 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:14:28,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:14:28,675 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:14:28,675 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:14:28,676 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:14:28,676 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:14:28,676 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:14:28,676 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:14:28,677 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_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 687269bb6882b72a3d48999f1e5c55a1d5283a94 [2018-11-18 11:14:28,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:14:28,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:14:28,711 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:14:28,712 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:14:28,713 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:14:28,713 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 11:14:28,758 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/data/ae2eb416f/5d17d879102640bc888549e6ba76e5e8/FLAGa4b803da3 [2018-11-18 11:14:29,179 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:14:29,180 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/sv-benchmarks/c/termination-crafted/TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 11:14:29,185 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/data/ae2eb416f/5d17d879102640bc888549e6ba76e5e8/FLAGa4b803da3 [2018-11-18 11:14:29,197 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/data/ae2eb416f/5d17d879102640bc888549e6ba76e5e8 [2018-11-18 11:14:29,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:14:29,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:14:29,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:14:29,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:14:29,205 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:14:29,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29, skipping insertion in model container [2018-11-18 11:14:29,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:14:29,230 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:14:29,350 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:14:29,352 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:14:29,362 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:14:29,370 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:14:29,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29 WrapperNode [2018-11-18 11:14:29,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:14:29,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:14:29,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:14:29,371 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:14:29,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:14:29,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:14:29,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:14:29,391 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:14:29,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... [2018-11-18 11:14:29,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:14:29,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:14:29,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:14:29,403 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:14:29,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:29,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:14:29,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:14:29,573 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:14:29,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:29 BoogieIcfgContainer [2018-11-18 11:14:29,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:14:29,574 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:14:29,574 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:14:29,576 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:14:29,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:14:29,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:14:29" (1/3) ... [2018-11-18 11:14:29,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65cce772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:14:29, skipping insertion in model container [2018-11-18 11:14:29,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:14:29,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:14:29" (2/3) ... [2018-11-18 11:14:29,578 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65cce772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:14:29, skipping insertion in model container [2018-11-18 11:14:29,578 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:14:29,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:29" (3/3) ... [2018-11-18 11:14:29,579 INFO L375 chiAutomizerObserver]: Analyzing ICFG TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 11:14:29,628 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:14:29,628 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:14:29,628 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:14:29,628 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:14:29,628 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:14:29,628 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:14:29,629 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:14:29,629 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:14:29,629 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:14:29,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-18 11:14:29,650 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:29,650 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:29,650 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:29,655 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:14:29,655 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:29,655 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:14:29,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-18 11:14:29,656 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:29,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:29,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:29,656 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:14:29,656 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:29,661 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 10#L25-2true [2018-11-18 11:14:29,661 INFO L796 eck$LassoCheckResult]: Loop: 10#L25-2true assume true; 11#L24-1true assume !!(main_~x~0 > 0 && main_~y~0 > 0); 15#L25true assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3#L26true assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 13#L26-2true main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L25-2true [2018-11-18 11:14:29,665 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:29,665 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 11:14:29,666 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:29,667 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:29,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:29,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:29,730 INFO L82 PathProgramCache]: Analyzing trace with hash 34542764, now seen corresponding path program 1 times [2018-11-18 11:14:29,730 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:29,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:29,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:29,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:29,742 INFO L82 PathProgramCache]: Analyzing trace with hash 1805982250, now seen corresponding path program 1 times [2018-11-18 11:14:29,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:29,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:29,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:29,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:29,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:29,824 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:29,825 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:29,825 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:29,825 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:29,825 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:29,825 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:29,825 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:29,826 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:29,826 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-18 11:14:29,826 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:29,826 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:29,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:29,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:29,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:29,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:29,944 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:29,945 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:29,956 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:29,956 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:29,985 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:29,986 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:29,988 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:29,988 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,004 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,004 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,006 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,026 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:30,026 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,055 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:30,056 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:30,057 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:30,057 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:30,057 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:30,057 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:30,057 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,057 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:30,057 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:30,057 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-18 11:14:30,057 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:30,057 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:30,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,165 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:30,170 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:30,171 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:30,172 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:30,173 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:30,173 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:30,173 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:30,176 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:30,176 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:30,183 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:30,183 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:30,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:30,184 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:30,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:30,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:30,185 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:30,186 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:30,186 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:30,194 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:30,198 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:30,198 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:30,199 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:30,200 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:30,200 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:30,200 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:30,201 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:30,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:30,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:30,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:30,328 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:30,329 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 5 states. [2018-11-18 11:14:30,367 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 5 states. Result 43 states and 55 transitions. Complement of second has 8 states. [2018-11-18 11:14:30,367 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 [2018-11-18 11:14:30,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 11:14:30,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2018-11-18 11:14:30,369 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-18 11:14:30,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-18 11:14:30,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-18 11:14:30,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 55 transitions. [2018-11-18 11:14:30,374 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2018-11-18 11:14:30,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 25 states and 33 transitions. [2018-11-18 11:14:30,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-18 11:14:30,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 11:14:30,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 33 transitions. [2018-11-18 11:14:30,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:30,379 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 33 transitions. [2018-11-18 11:14:30,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 33 transitions. [2018-11-18 11:14:30,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2018-11-18 11:14:30,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 11:14:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2018-11-18 11:14:30,396 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-18 11:14:30,397 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2018-11-18 11:14:30,397 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:14:30,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2018-11-18 11:14:30,397 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2018-11-18 11:14:30,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:30,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:30,398 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 11:14:30,398 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:30,398 INFO L794 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 108#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 109#L25-2 assume true; 122#L24-1 [2018-11-18 11:14:30,398 INFO L796 eck$LassoCheckResult]: Loop: 122#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 126#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 110#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 111#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 121#L25-2 assume true; 122#L24-1 [2018-11-18 11:14:30,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,398 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-18 11:14:30,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,402 INFO L82 PathProgramCache]: Analyzing trace with hash 40178176, now seen corresponding path program 1 times [2018-11-18 11:14:30,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,410 INFO L82 PathProgramCache]: Analyzing trace with hash 150876830, now seen corresponding path program 1 times [2018-11-18 11:14:30,410 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,410 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,451 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:30,451 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:30,451 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:30,451 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:30,451 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:30,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:30,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:30,452 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-18 11:14:30,452 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:30,452 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:30,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,535 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:30,535 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,538 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,554 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,554 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,558 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,574 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,574 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,577 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,577 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,597 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:30,597 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,617 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:30,618 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:30,618 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:30,619 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:30,619 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:30,619 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:30,619 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,619 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:30,619 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:30,619 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-18 11:14:30,619 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:30,619 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:30,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,622 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,664 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:30,664 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:30,665 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:30,665 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:30,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:30,666 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:30,666 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:30,667 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:30,667 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:30,670 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:30,670 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:30,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:30,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:30,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:30,671 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:30,672 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:30,672 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:30,677 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:30,677 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:30,678 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:30,678 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:30,678 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:30,678 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:30,678 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:30,682 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:30,682 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:30,687 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:30,691 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:30,692 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:30,692 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:30,692 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:30,692 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:30,692 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:30,693 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:30,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:30,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:30,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:30,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:30,741 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:30,741 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 11:14:30,753 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 21 states and 28 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 38 states and 52 transitions. Complement of second has 7 states. [2018-11-18 11:14:30,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-18 11:14:30,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 5 letters. [2018-11-18 11:14:30,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 8 letters. Loop has 5 letters. [2018-11-18 11:14:30,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 3 letters. Loop has 10 letters. [2018-11-18 11:14:30,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:30,755 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 52 transitions. [2018-11-18 11:14:30,757 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:30,757 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 31 states and 41 transitions. [2018-11-18 11:14:30,757 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-18 11:14:30,758 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 11:14:30,758 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 41 transitions. [2018-11-18 11:14:30,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:30,758 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 41 transitions. [2018-11-18 11:14:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 41 transitions. [2018-11-18 11:14:30,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2018-11-18 11:14:30,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 11:14:30,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-11-18 11:14:30,760 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-18 11:14:30,760 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-11-18 11:14:30,761 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:14:30,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-11-18 11:14:30,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:30,761 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:30,761 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:30,762 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:30,762 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:30,762 INFO L794 eck$LassoCheckResult]: Stem: 222#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 216#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 217#L25-2 assume true; 236#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 229#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 223#L33 [2018-11-18 11:14:30,762 INFO L796 eck$LassoCheckResult]: Loop: 223#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 214#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 215#L25-2 assume true; 235#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 234#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 223#L33 [2018-11-18 11:14:30,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,763 INFO L82 PathProgramCache]: Analyzing trace with hash 28694895, now seen corresponding path program 1 times [2018-11-18 11:14:30,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,768 INFO L82 PathProgramCache]: Analyzing trace with hash 54493901, now seen corresponding path program 1 times [2018-11-18 11:14:30,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:30,775 INFO L82 PathProgramCache]: Analyzing trace with hash -771858913, now seen corresponding path program 1 times [2018-11-18 11:14:30,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:30,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:30,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:30,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:30,809 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:30,809 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:30,809 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:30,810 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:30,810 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:30,810 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,810 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:30,810 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:30,810 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-18 11:14:30,810 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:30,810 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:30,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,817 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:30,880 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:30,880 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,882 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,882 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,886 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,886 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:30,901 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,901 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,916 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,916 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,923 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:30,942 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:30,942 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:30,944 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:30,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:30,961 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,029 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:31,030 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:31,030 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:31,030 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:31,030 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:31,030 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:31,031 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,031 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:31,031 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:31,031 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-18 11:14:31,031 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:31,031 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:31,032 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,036 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,092 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:31,092 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:31,093 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,093 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,094 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,094 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,094 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,094 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:31,094 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,095 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,096 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,096 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,096 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,097 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,100 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,100 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,102 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,102 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,104 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,104 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,104 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,104 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,106 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:31,106 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,109 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:31,111 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:31,111 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:31,112 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:31,112 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:31,112 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:31,112 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 11:14:31,112 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:31,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,130 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,147 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:31,147 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-11-18 11:14:31,176 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 41 states and 58 transitions. Complement of second has 7 states. [2018-11-18 11:14:31,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:31,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:31,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-18 11:14:31,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 5 letters. [2018-11-18 11:14:31,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 10 letters. Loop has 5 letters. [2018-11-18 11:14:31,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,178 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 5 letters. Loop has 10 letters. [2018-11-18 11:14:31,178 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 58 transitions. [2018-11-18 11:14:31,179 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:31,181 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 34 states and 47 transitions. [2018-11-18 11:14:31,181 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-18 11:14:31,181 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-11-18 11:14:31,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 47 transitions. [2018-11-18 11:14:31,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:31,182 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 47 transitions. [2018-11-18 11:14:31,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 47 transitions. [2018-11-18 11:14:31,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-11-18 11:14:31,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 11:14:31,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2018-11-18 11:14:31,186 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2018-11-18 11:14:31,186 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 44 transitions. [2018-11-18 11:14:31,186 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 11:14:31,186 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 44 transitions. [2018-11-18 11:14:31,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 11:14:31,186 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:31,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:31,187 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:31,187 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:31,187 INFO L794 eck$LassoCheckResult]: Stem: 346#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 340#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 341#L25-2 assume true; 362#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 353#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 347#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 338#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 339#L25-2 assume true; 360#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 358#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 342#L26 [2018-11-18 11:14:31,187 INFO L796 eck$LassoCheckResult]: Loop: 342#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 343#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 337#L25-2 assume true; 361#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 359#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 342#L26 [2018-11-18 11:14:31,188 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,188 INFO L82 PathProgramCache]: Analyzing trace with hash -770011880, now seen corresponding path program 1 times [2018-11-18 11:14:31,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:31,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,196 INFO L82 PathProgramCache]: Analyzing trace with hash 45914084, now seen corresponding path program 2 times [2018-11-18 11:14:31,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:31,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,202 INFO L82 PathProgramCache]: Analyzing trace with hash 863084845, now seen corresponding path program 1 times [2018-11-18 11:14:31,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,203 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:31,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,248 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:31,249 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:31,249 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:31,249 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:31,249 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:31,249 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,249 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:31,249 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:31,249 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-18 11:14:31,249 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:31,249 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:31,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,295 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:31,295 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,298 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,300 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,301 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,336 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,337 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,361 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,361 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,366 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,366 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,382 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,382 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,385 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,385 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,403 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:31,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,521 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:31,523 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:31,523 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:31,523 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:31,523 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:31,523 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:31,523 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,523 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:31,523 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:31,523 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-18 11:14:31,524 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:31,524 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:31,525 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,575 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:31,575 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:31,575 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,576 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,576 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,576 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,576 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 11:14:31,576 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,577 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 11:14:31,577 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,579 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,579 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,580 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,582 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,582 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,582 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,582 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,585 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,585 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,585 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,589 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,590 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,590 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,590 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,590 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,592 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,593 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,593 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,593 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,593 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,593 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,593 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,594 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:31,594 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,598 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:31,600 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:31,600 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:31,601 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:31,601 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:31,601 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:31,601 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:31,601 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:31,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,638 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,650 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:31,650 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 16 Second operand 4 states. [2018-11-18 11:14:31,668 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 32 states and 44 transitions. cyclomatic complexity: 16. Second operand 4 states. Result 109 states and 146 transitions. Complement of second has 7 states. [2018-11-18 11:14:31,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:31,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:31,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-18 11:14:31,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 10 letters. Loop has 5 letters. [2018-11-18 11:14:31,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:31,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 10 letters. Loop has 10 letters. [2018-11-18 11:14:31,670 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,670 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 146 transitions. [2018-11-18 11:14:31,672 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2018-11-18 11:14:31,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 75 states and 100 transitions. [2018-11-18 11:14:31,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-11-18 11:14:31,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 11:14:31,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 75 states and 100 transitions. [2018-11-18 11:14:31,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:31,673 INFO L705 BuchiCegarLoop]: Abstraction has 75 states and 100 transitions. [2018-11-18 11:14:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states and 100 transitions. [2018-11-18 11:14:31,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 57. [2018-11-18 11:14:31,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-11-18 11:14:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 78 transitions. [2018-11-18 11:14:31,676 INFO L728 BuchiCegarLoop]: Abstraction has 57 states and 78 transitions. [2018-11-18 11:14:31,676 INFO L608 BuchiCegarLoop]: Abstraction has 57 states and 78 transitions. [2018-11-18 11:14:31,676 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 11:14:31,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 57 states and 78 transitions. [2018-11-18 11:14:31,677 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 12 [2018-11-18 11:14:31,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:31,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:31,677 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:31,677 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:31,677 INFO L794 eck$LassoCheckResult]: Stem: 558#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 551#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 552#L25-2 assume true; 589#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 586#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 583#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 549#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 550#L25-2 assume true; 588#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 584#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 585#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 554#L26-2 [2018-11-18 11:14:31,677 INFO L796 eck$LassoCheckResult]: Loop: 554#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 569#L25-2 assume true; 566#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 567#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 553#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 554#L26-2 [2018-11-18 11:14:31,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1899435516, now seen corresponding path program 1 times [2018-11-18 11:14:31,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:31,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,685 INFO L82 PathProgramCache]: Analyzing trace with hash 49137376, now seen corresponding path program 2 times [2018-11-18 11:14:31,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:31,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,689 INFO L82 PathProgramCache]: Analyzing trace with hash 1043084741, now seen corresponding path program 1 times [2018-11-18 11:14:31,689 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:31,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:31,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,690 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:31,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:31,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:31,741 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:31,741 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:31,741 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:31,741 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:31,741 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:31,741 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,741 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:31,741 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:31,741 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration5_Loop [2018-11-18 11:14:31,741 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:31,741 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:31,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,780 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:31,780 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,786 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,786 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,801 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,801 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/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 [2018-11-18 11:14:31,804 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,804 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,819 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,819 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,823 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,823 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,825 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:31,825 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,841 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:31,841 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:31,859 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:31,878 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:31,879 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:31,879 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:31,879 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:31,879 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:31,879 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:31,879 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:31,880 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:31,880 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:31,880 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration5_Loop [2018-11-18 11:14:31,880 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:31,880 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:31,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:31,928 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:31,928 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:31,929 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,929 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,929 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,930 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,930 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,932 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,932 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,933 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,933 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,933 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,933 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 11:14:31,933 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,933 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 11:14:31,934 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,935 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,936 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,936 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,937 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:31,937 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:31,940 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:31,940 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:31,940 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:31,941 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:31,941 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:31,941 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:31,941 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:31,941 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:31,941 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:31,944 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:31,946 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:31,946 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:31,946 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:31,946 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:31,947 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:31,947 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:31,947 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:31,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:31,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:31,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:31,973 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:14:31,973 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 57 states and 78 transitions. cyclomatic complexity: 28 Second operand 4 states. [2018-11-18 11:14:31,985 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 57 states and 78 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 143 states and 195 transitions. Complement of second has 7 states. [2018-11-18 11:14:31,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:31,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:31,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-18 11:14:31,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 5 letters. [2018-11-18 11:14:31,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 16 letters. Loop has 5 letters. [2018-11-18 11:14:31,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,987 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 11 letters. Loop has 10 letters. [2018-11-18 11:14:31,987 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:31,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 195 transitions. [2018-11-18 11:14:31,993 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-11-18 11:14:31,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 114 states and 153 transitions. [2018-11-18 11:14:31,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2018-11-18 11:14:31,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 45 [2018-11-18 11:14:31,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 153 transitions. [2018-11-18 11:14:31,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:31,994 INFO L705 BuchiCegarLoop]: Abstraction has 114 states and 153 transitions. [2018-11-18 11:14:31,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 153 transitions. [2018-11-18 11:14:31,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2018-11-18 11:14:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2018-11-18 11:14:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2018-11-18 11:14:31,999 INFO L728 BuchiCegarLoop]: Abstraction has 94 states and 130 transitions. [2018-11-18 11:14:31,999 INFO L608 BuchiCegarLoop]: Abstraction has 94 states and 130 transitions. [2018-11-18 11:14:31,999 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 11:14:31,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 94 states and 130 transitions. [2018-11-18 11:14:32,000 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2018-11-18 11:14:32,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:32,000 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:32,000 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:32,000 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:32,000 INFO L794 eck$LassoCheckResult]: Stem: 828#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 823#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 824#L25-2 assume true; 864#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 909#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 908#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 906#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 905#L25-2 assume true; 904#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 903#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 898#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 902#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 901#L25-2 assume true; 892#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 893#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 896#L26 [2018-11-18 11:14:32,001 INFO L796 eck$LassoCheckResult]: Loop: 896#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 837#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 820#L25-2 assume true; 890#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 891#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 896#L26 [2018-11-18 11:14:32,001 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,001 INFO L82 PathProgramCache]: Analyzing trace with hash 1372736639, now seen corresponding path program 2 times [2018-11-18 11:14:32,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,002 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:32,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,008 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,008 INFO L82 PathProgramCache]: Analyzing trace with hash 45914084, now seen corresponding path program 3 times [2018-11-18 11:14:32,008 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,008 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,008 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:32,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1954780634, now seen corresponding path program 3 times [2018-11-18 11:14:32,012 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,012 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,012 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:32,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,039 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:32,039 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:32,039 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:32,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:32,039 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:32,039 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,039 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:32,039 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:32,039 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration6_Loop [2018-11-18 11:14:32,040 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:32,040 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:32,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,042 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,077 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:32,077 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,078 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,078 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,093 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:32,094 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,098 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,098 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,113 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:32,113 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,116 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,116 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,136 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:32,137 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,234 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:32,236 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:32,236 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:32,236 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:32,236 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:32,236 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:32,236 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,236 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:32,236 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:32,236 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration6_Loop [2018-11-18 11:14:32,237 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:32,237 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:32,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,245 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,271 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:32,271 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:32,271 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,272 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,272 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,273 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:32,273 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:32,275 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:32,275 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,276 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,276 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,276 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,276 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,277 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:32,277 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:32,278 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:32,278 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,279 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,279 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:32,279 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,279 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,280 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:32,280 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:32,282 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:32,284 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:32,285 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:32,285 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:32,285 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:32,285 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:32,285 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:32,285 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:32,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,317 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:32,317 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48 Second operand 4 states. [2018-11-18 11:14:32,339 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48. Second operand 4 states. Result 190 states and 257 transitions. Complement of second has 7 states. [2018-11-18 11:14:32,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-18 11:14:32,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:32,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,342 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:32,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,368 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:32,368 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48 Second operand 4 states. [2018-11-18 11:14:32,388 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48. Second operand 4 states. Result 200 states and 268 transitions. Complement of second has 9 states. [2018-11-18 11:14:32,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:32,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 11:14:32,388 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:32,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,388 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:32,395 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,408 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,424 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 3 loop predicates [2018-11-18 11:14:32,424 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48 Second operand 4 states. [2018-11-18 11:14:32,446 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 94 states and 130 transitions. cyclomatic complexity: 48. Second operand 4 states. Result 231 states and 321 transitions. Complement of second has 9 states. [2018-11-18 11:14:32,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:32,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 29 transitions. [2018-11-18 11:14:32,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:32,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 20 letters. Loop has 5 letters. [2018-11-18 11:14:32,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 29 transitions. Stem has 15 letters. Loop has 10 letters. [2018-11-18 11:14:32,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 231 states and 321 transitions. [2018-11-18 11:14:32,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 38 [2018-11-18 11:14:32,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 231 states to 150 states and 205 transitions. [2018-11-18 11:14:32,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 39 [2018-11-18 11:14:32,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-11-18 11:14:32,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 150 states and 205 transitions. [2018-11-18 11:14:32,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:32,457 INFO L705 BuchiCegarLoop]: Abstraction has 150 states and 205 transitions. [2018-11-18 11:14:32,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states and 205 transitions. [2018-11-18 11:14:32,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 93. [2018-11-18 11:14:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2018-11-18 11:14:32,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 128 transitions. [2018-11-18 11:14:32,462 INFO L728 BuchiCegarLoop]: Abstraction has 93 states and 128 transitions. [2018-11-18 11:14:32,462 INFO L608 BuchiCegarLoop]: Abstraction has 93 states and 128 transitions. [2018-11-18 11:14:32,463 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 11:14:32,463 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 128 transitions. [2018-11-18 11:14:32,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 31 [2018-11-18 11:14:32,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:32,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:32,464 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:32,464 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:32,464 INFO L794 eck$LassoCheckResult]: Stem: 1775#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1768#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 1769#L25-2 assume true; 1812#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1789#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1776#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 1766#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1767#L25-2 assume true; 1814#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1805#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1770#L26 [2018-11-18 11:14:32,464 INFO L796 eck$LassoCheckResult]: Loop: 1770#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 1771#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 1824#L25-2 assume true; 1818#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1815#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 1804#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 1808#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 1807#L25-2 assume true; 1806#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 1803#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 1770#L26 [2018-11-18 11:14:32,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,465 INFO L82 PathProgramCache]: Analyzing trace with hash -770011880, now seen corresponding path program 2 times [2018-11-18 11:14:32,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,466 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:32,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1803485608, now seen corresponding path program 1 times [2018-11-18 11:14:32,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,470 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,471 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:32,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,476 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1696291503, now seen corresponding path program 1 times [2018-11-18 11:14:32,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:32,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,540 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:32,540 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:32,540 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:32,541 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:32,541 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:32,541 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,541 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:32,541 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:32,541 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration7_Loop [2018-11-18 11:14:32,541 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:32,541 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:32,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,583 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:32,583 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,585 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,585 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,587 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:32,587 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,602 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,602 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,617 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:32,617 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,619 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,634 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:32,634 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_13=0} Honda state: {v_rep~unnamed0~0~false_13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:32,637 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:32,656 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:32,763 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:32,764 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:32,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:32,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:32,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:32,764 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:32,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:32,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:32,764 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration7_Loop [2018-11-18 11:14:32,764 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:32,764 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:32,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,767 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,801 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:32,801 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:32,801 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,802 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,802 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:32,802 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,802 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,802 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,802 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:32,802 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:32,803 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:32,803 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,803 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,803 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,804 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,804 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,804 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:32,804 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:32,806 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:32,806 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,807 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,808 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:32,808 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:32,809 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:32,809 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:32,810 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:32,810 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:32,810 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:32,810 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:32,810 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:32,811 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:32,811 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:32,813 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:32,815 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:32,816 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:32,816 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:32,816 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:32,816 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:32,816 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 11:14:32,816 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:32,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:32,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:32,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:32,865 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-11-18 11:14:32,865 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 93 states and 128 transitions. cyclomatic complexity: 44 Second operand 5 states. [2018-11-18 11:14:32,905 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 93 states and 128 transitions. cyclomatic complexity: 44. Second operand 5 states. Result 262 states and 370 transitions. Complement of second has 12 states. [2018-11-18 11:14:32,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 11:14:32,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 36 transitions. [2018-11-18 11:14:32,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 10 letters. Loop has 10 letters. [2018-11-18 11:14:32,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,905 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 20 letters. Loop has 10 letters. [2018-11-18 11:14:32,905 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,906 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 36 transitions. Stem has 10 letters. Loop has 20 letters. [2018-11-18 11:14:32,906 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:32,906 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 370 transitions. [2018-11-18 11:14:32,907 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 37 [2018-11-18 11:14:32,909 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 250 states and 357 transitions. [2018-11-18 11:14:32,909 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 45 [2018-11-18 11:14:32,909 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 47 [2018-11-18 11:14:32,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 250 states and 357 transitions. [2018-11-18 11:14:32,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:32,909 INFO L705 BuchiCegarLoop]: Abstraction has 250 states and 357 transitions. [2018-11-18 11:14:32,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states and 357 transitions. [2018-11-18 11:14:32,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 207. [2018-11-18 11:14:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2018-11-18 11:14:32,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 299 transitions. [2018-11-18 11:14:32,917 INFO L728 BuchiCegarLoop]: Abstraction has 207 states and 299 transitions. [2018-11-18 11:14:32,917 INFO L608 BuchiCegarLoop]: Abstraction has 207 states and 299 transitions. [2018-11-18 11:14:32,917 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-18 11:14:32,917 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 207 states and 299 transitions. [2018-11-18 11:14:32,917 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2018-11-18 11:14:32,918 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:32,918 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:32,918 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:32,918 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:32,918 INFO L794 eck$LassoCheckResult]: Stem: 2227#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2219#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 2220#L25-2 assume true; 2296#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 2295#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 2294#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 2293#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 2291#L25-2 assume true; 2289#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 2256#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 2258#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 2222#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 2278#L25-2 assume true; 2276#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 2272#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 2266#L33 [2018-11-18 11:14:32,918 INFO L796 eck$LassoCheckResult]: Loop: 2266#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 2263#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 2262#L25-2 assume true; 2261#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 2259#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 2221#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 2222#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 2278#L25-2 assume true; 2276#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 2272#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 2266#L33 [2018-11-18 11:14:32,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,918 INFO L82 PathProgramCache]: Analyzing trace with hash 863084854, now seen corresponding path program 4 times [2018-11-18 11:14:32,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:32,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,922 INFO L82 PathProgramCache]: Analyzing trace with hash 976369992, now seen corresponding path program 1 times [2018-11-18 11:14:32,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,923 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:32,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:32,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1009228861, now seen corresponding path program 5 times [2018-11-18 11:14:32,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:32,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:32,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:32,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:32,982 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:32,982 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:32,983 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:32,983 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:32,983 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:32,983 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:32,983 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:32,983 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:32,983 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration8_Loop [2018-11-18 11:14:32,983 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:32,983 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:32,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:32,999 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,040 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:33,040 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,042 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,042 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,057 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:33,057 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_15=1} Honda state: {v_rep~unnamed0~0~true_15=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,060 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,060 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,062 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:33,062 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=7} Honda state: {ULTIMATE.start_main_#t~nondet2=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,079 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,079 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,094 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:33,094 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_15=0} Honda state: {v_rep~unnamed0~0~false_15=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,097 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,113 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:33,114 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,173 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:33,174 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:33,174 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:33,174 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:33,174 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:33,174 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:33,175 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:33,175 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:33,175 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration8_Loop [2018-11-18 11:14:33,175 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:33,175 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:33,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,251 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:33,251 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:33,251 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,252 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,252 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,252 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:33,252 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,253 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:33,253 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:33,259 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:33,259 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,259 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,260 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:33,260 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,260 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 11:14:33,260 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,260 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 11:14:33,260 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:33,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:33,262 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,262 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:33,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,262 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:33,262 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:33,263 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:33,265 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:33,267 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:33,267 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:33,267 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:33,268 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:33,268 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:33,268 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:33,268 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:33,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:33,337 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2018-11-18 11:14:33,337 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 207 states and 299 transitions. cyclomatic complexity: 110 Second operand 5 states. [2018-11-18 11:14:33,405 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 207 states and 299 transitions. cyclomatic complexity: 110. Second operand 5 states. Result 572 states and 834 transitions. Complement of second has 12 states. [2018-11-18 11:14:33,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:33,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 11:14:33,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 35 transitions. [2018-11-18 11:14:33,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 10 letters. [2018-11-18 11:14:33,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 25 letters. Loop has 10 letters. [2018-11-18 11:14:33,410 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 35 transitions. Stem has 15 letters. Loop has 20 letters. [2018-11-18 11:14:33,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 572 states and 834 transitions. [2018-11-18 11:14:33,414 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 17 [2018-11-18 11:14:33,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 572 states to 451 states and 639 transitions. [2018-11-18 11:14:33,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2018-11-18 11:14:33,417 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 70 [2018-11-18 11:14:33,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 451 states and 639 transitions. [2018-11-18 11:14:33,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:33,417 INFO L705 BuchiCegarLoop]: Abstraction has 451 states and 639 transitions. [2018-11-18 11:14:33,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states and 639 transitions. [2018-11-18 11:14:33,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 373. [2018-11-18 11:14:33,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 373 states. [2018-11-18 11:14:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 553 transitions. [2018-11-18 11:14:33,427 INFO L728 BuchiCegarLoop]: Abstraction has 373 states and 553 transitions. [2018-11-18 11:14:33,427 INFO L608 BuchiCegarLoop]: Abstraction has 373 states and 553 transitions. [2018-11-18 11:14:33,427 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-18 11:14:33,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 373 states and 553 transitions. [2018-11-18 11:14:33,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2018-11-18 11:14:33,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:33,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:33,430 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:33,430 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:33,430 INFO L794 eck$LassoCheckResult]: Stem: 3115#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 3105#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 3106#L25-2 assume true; 3240#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3294#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3362#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 3376#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 3375#L25-2 assume true; 3374#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3372#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 3370#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 3175#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 3173#L25-2 assume true; 3171#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3165#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3116#L33 assume !(main_~x~0 < main_~y~0);main_~x~0 := main_~y~0 - 1; 3107#L33-2 [2018-11-18 11:14:33,430 INFO L796 eck$LassoCheckResult]: Loop: 3107#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 3108#L25-2 assume true; 3119#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 3122#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 3431#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 3107#L33-2 [2018-11-18 11:14:33,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,430 INFO L82 PathProgramCache]: Analyzing trace with hash 985826727, now seen corresponding path program 6 times [2018-11-18 11:14:33,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,431 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:33,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,436 INFO L82 PathProgramCache]: Analyzing trace with hash 57449351, now seen corresponding path program 2 times [2018-11-18 11:14:33,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,437 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:33,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1102687649, now seen corresponding path program 2 times [2018-11-18 11:14:33,440 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,440 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:33,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,475 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:33,475 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:33,475 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:33,475 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:33,475 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:33,475 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,475 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:33,476 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:33,476 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration9_Loop [2018-11-18 11:14:33,476 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:33,476 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:33,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,511 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:33,512 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,514 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,529 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:33,529 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_17=1} Honda state: {v_rep~unnamed0~0~true_17=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,531 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,532 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,533 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:33,533 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,549 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,565 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:33,565 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:33,583 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:33,584 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:33,585 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:33,585 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:33,585 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:33,585 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:33,585 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,585 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:33,585 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:33,585 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration9_Loop [2018-11-18 11:14:33,585 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:33,585 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:33,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,591 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,623 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:33,623 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:33,624 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,624 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,624 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,624 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:33,624 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,624 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:33,625 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:33,626 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:33,627 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,627 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,627 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:33,627 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:33,627 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,628 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:33,628 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:33,628 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:33,628 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:33,629 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:33,629 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:33,629 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:33,629 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:33,629 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:33,630 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:33,630 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:33,631 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:33,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:33,633 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:33,633 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:33,633 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:33,634 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:33,634 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 11:14:33,634 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:33,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,648 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:33,662 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:14:33,662 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211 Second operand 4 states. [2018-11-18 11:14:33,676 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211. Second operand 4 states. Result 801 states and 1166 transitions. Complement of second has 7 states. [2018-11-18 11:14:33,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:33,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:33,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-18 11:14:33,677 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 16 letters. Loop has 5 letters. [2018-11-18 11:14:33,677 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,677 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:33,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,718 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:33,725 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 [2018-11-18 11:14:33,725 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211 Second operand 4 states. [2018-11-18 11:14:33,743 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211. Second operand 4 states. Result 822 states and 1197 transitions. Complement of second has 7 states. [2018-11-18 11:14:33,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:33,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2018-11-18 11:14:33,746 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 5 letters. [2018-11-18 11:14:33,746 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,746 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:33,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:33,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:33,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:33,785 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 [2018-11-18 11:14:33,785 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211 Second operand 4 states. [2018-11-18 11:14:33,798 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 373 states and 553 transitions. cyclomatic complexity: 211. Second operand 4 states. Result 524 states and 754 transitions. Complement of second has 6 states. [2018-11-18 11:14:33,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:33,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:33,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2018-11-18 11:14:33,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 5 letters. [2018-11-18 11:14:33,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,800 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 21 letters. Loop has 5 letters. [2018-11-18 11:14:33,800 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 16 letters. Loop has 10 letters. [2018-11-18 11:14:33,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:33,801 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 524 states and 754 transitions. [2018-11-18 11:14:33,804 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2018-11-18 11:14:33,806 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 524 states to 461 states and 667 transitions. [2018-11-18 11:14:33,806 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2018-11-18 11:14:33,806 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2018-11-18 11:14:33,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 461 states and 667 transitions. [2018-11-18 11:14:33,806 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:33,807 INFO L705 BuchiCegarLoop]: Abstraction has 461 states and 667 transitions. [2018-11-18 11:14:33,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states and 667 transitions. [2018-11-18 11:14:33,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 418. [2018-11-18 11:14:33,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-11-18 11:14:33,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 598 transitions. [2018-11-18 11:14:33,815 INFO L728 BuchiCegarLoop]: Abstraction has 418 states and 598 transitions. [2018-11-18 11:14:33,815 INFO L608 BuchiCegarLoop]: Abstraction has 418 states and 598 transitions. [2018-11-18 11:14:33,815 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-18 11:14:33,815 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 418 states and 598 transitions. [2018-11-18 11:14:33,816 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2018-11-18 11:14:33,816 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:33,816 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:33,817 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:33,817 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:33,817 INFO L794 eck$LassoCheckResult]: Stem: 5864#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 5855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 5856#L25-2 assume true; 5953#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 5954#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 6131#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 6234#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 6235#L25-2 assume true; 6228#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 6229#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 6221#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 6015#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 6013#L25-2 assume true; 6012#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 5916#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 5884#L33 [2018-11-18 11:14:33,817 INFO L796 eck$LassoCheckResult]: Loop: 5884#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 5857#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 5858#L25-2 assume true; 5907#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 5904#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 5884#L33 [2018-11-18 11:14:33,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,818 INFO L82 PathProgramCache]: Analyzing trace with hash 1256111864, now seen corresponding path program 1 times [2018-11-18 11:14:33,818 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,818 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,818 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:33,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,823 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,823 INFO L82 PathProgramCache]: Analyzing trace with hash 54493901, now seen corresponding path program 3 times [2018-11-18 11:14:33,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,823 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:33,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:33,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1318812106, now seen corresponding path program 2 times [2018-11-18 11:14:33,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:33,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:33,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,828 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:33,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:33,855 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:33,855 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:33,855 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:33,855 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:33,855 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:33,855 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,855 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:33,855 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:33,856 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration10_Loop [2018-11-18 11:14:33,856 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:33,856 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:33,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:33,901 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:33,902 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,906 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:33,906 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:33,933 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:33,933 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:34,014 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:34,015 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:34,015 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:34,015 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:34,015 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:34,015 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:34,015 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,015 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:34,015 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:34,015 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration10_Loop [2018-11-18 11:14:34,015 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:34,015 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:34,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,022 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,025 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,052 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:34,053 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:34,053 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:34,053 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:34,053 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:34,053 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:34,053 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:34,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:34,054 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:34,054 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:34,056 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:34,057 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:34,057 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:34,057 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:34,057 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:34,058 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:34,058 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 11:14:34,058 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:34,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,078 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,096 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:34,096 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215 Second operand 4 states. [2018-11-18 11:14:34,112 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215. Second operand 4 states. Result 577 states and 826 transitions. Complement of second has 7 states. [2018-11-18 11:14:34,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-18 11:14:34,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:34,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,114 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:34,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,128 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,137 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,146 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:34,147 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215 Second operand 4 states. [2018-11-18 11:14:34,165 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215. Second operand 4 states. Result 580 states and 819 transitions. Complement of second has 7 states. [2018-11-18 11:14:34,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-18 11:14:34,166 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:34,166 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,166 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:34,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,206 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 3 loop predicates [2018-11-18 11:14:34,206 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215 Second operand 4 states. [2018-11-18 11:14:34,227 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 418 states and 598 transitions. cyclomatic complexity: 215. Second operand 4 states. Result 641 states and 931 transitions. Complement of second has 8 states. [2018-11-18 11:14:34,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-18 11:14:34,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 5 letters. [2018-11-18 11:14:34,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 20 letters. Loop has 5 letters. [2018-11-18 11:14:34,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 15 letters. Loop has 10 letters. [2018-11-18 11:14:34,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,230 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 641 states and 931 transitions. [2018-11-18 11:14:34,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:14:34,236 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 641 states to 451 states and 629 transitions. [2018-11-18 11:14:34,236 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-18 11:14:34,237 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-18 11:14:34,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 451 states and 629 transitions. [2018-11-18 11:14:34,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:14:34,237 INFO L705 BuchiCegarLoop]: Abstraction has 451 states and 629 transitions. [2018-11-18 11:14:34,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states and 629 transitions. [2018-11-18 11:14:34,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 377. [2018-11-18 11:14:34,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-11-18 11:14:34,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 533 transitions. [2018-11-18 11:14:34,244 INFO L728 BuchiCegarLoop]: Abstraction has 377 states and 533 transitions. [2018-11-18 11:14:34,244 INFO L608 BuchiCegarLoop]: Abstraction has 377 states and 533 transitions. [2018-11-18 11:14:34,244 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-18 11:14:34,245 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 377 states and 533 transitions. [2018-11-18 11:14:34,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:14:34,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:14:34,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:14:34,247 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:14:34,247 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:14:34,248 INFO L794 eck$LassoCheckResult]: Stem: 8306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 8299#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8300#L25-2 assume true; 8341#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8351#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 8352#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 8407#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 8405#L25-2 assume true; 8404#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8362#L25 assume !(0 != main_#t~nondet2);havoc main_#t~nondet2; 8363#L33 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 - 1; 8349#L33-2 main_~y~0 := main_#t~nondet4;havoc main_#t~nondet4; 8350#L25-2 assume true; 8339#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8340#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 8326#L26 assume main_~x~0 < main_~y~0;main_~y~0 := main_~x~0 - 1; 8327#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 8381#L25-2 assume true; 8380#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8376#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 8324#L26 [2018-11-18 11:14:34,248 INFO L796 eck$LassoCheckResult]: Loop: 8324#L26 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 - 1; 8325#L26-2 main_~x~0 := main_#t~nondet3;havoc main_#t~nondet3; 8338#L25-2 assume true; 8337#L24-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0); 8332#L25 assume 0 != main_#t~nondet2;havoc main_#t~nondet2; 8324#L26 [2018-11-18 11:14:34,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1453349994, now seen corresponding path program 1 times [2018-11-18 11:14:34,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:34,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:34,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,249 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:34,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,256 INFO L82 PathProgramCache]: Analyzing trace with hash 47761126, now seen corresponding path program 3 times [2018-11-18 11:14:34,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:34,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:34,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:14:34,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,264 INFO L82 PathProgramCache]: Analyzing trace with hash -2126592995, now seen corresponding path program 2 times [2018-11-18 11:14:34,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:14:34,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:14:34,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,265 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:14:34,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:14:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:14:34,320 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:34,320 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:34,320 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:34,320 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:34,320 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:14:34,320 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,320 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:34,320 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:34,321 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration11_Loop [2018-11-18 11:14:34,321 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:34,321 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:34,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,391 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:34,391 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,406 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:34,407 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:34,442 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:14:34,442 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_21=0} Honda state: {v_rep~unnamed0~0~false_21=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,451 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:14:34,451 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_37fbbe59-1c90-498c-8716-d4b106f49fed/bin-2019/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:14:34,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:14:34,574 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:14:34,576 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:14:34,576 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:14:34,576 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:14:34,576 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:14:34,576 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:14:34,576 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:14:34,576 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:14:34,576 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:14:34,576 INFO L131 ssoRankerPreferences]: Filename of dumped script: TelAviv-Amir-Minimum_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration11_Loop [2018-11-18 11:14:34,576 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:14:34,576 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:14:34,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:14:34,630 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:14:34,630 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:14:34,630 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:34,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:34,631 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:34,631 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:34,631 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:34,632 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:34,632 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:34,633 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:34,633 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:34,640 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:34,640 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:34,640 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:34,641 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:34,641 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:14:34,641 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:14:34,643 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:14:34,644 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:14:34,644 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:14:34,644 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:14:34,644 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:14:34,644 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:14:34,644 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:14:34,645 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:14:34,645 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:14:34,647 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:14:34,648 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:14:34,649 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:14:34,649 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:14:34,649 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:14:34,649 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:14:34,649 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:14:34,649 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:14:34,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,681 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,695 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:34,696 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188 Second operand 4 states. [2018-11-18 11:14:34,714 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188. Second operand 4 states. Result 542 states and 756 transitions. Complement of second has 7 states. [2018-11-18 11:14:34,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-18 11:14:34,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 20 letters. Loop has 5 letters. [2018-11-18 11:14:34,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,716 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:34,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,750 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 11:14:34,750 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188 Second operand 4 states. [2018-11-18 11:14:34,772 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188. Second operand 4 states. Result 551 states and 760 transitions. Complement of second has 7 states. [2018-11-18 11:14:34,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-18 11:14:34,774 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 20 letters. Loop has 5 letters. [2018-11-18 11:14:34,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,774 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:14:34,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:14:34,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:14:34,800 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:14:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:14:34,813 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 3 loop predicates [2018-11-18 11:14:34,813 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188 Second operand 4 states. [2018-11-18 11:14:34,831 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 377 states and 533 transitions. cyclomatic complexity: 188. Second operand 4 states. Result 641 states and 935 transitions. Complement of second has 8 states. [2018-11-18 11:14:34,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:14:34,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:14:34,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-11-18 11:14:34,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 20 letters. Loop has 5 letters. [2018-11-18 11:14:34,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 25 letters. Loop has 5 letters. [2018-11-18 11:14:34,833 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,833 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 20 letters. Loop has 10 letters. [2018-11-18 11:14:34,834 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:14:34,834 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 641 states and 935 transitions. [2018-11-18 11:14:34,838 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:14:34,838 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 641 states to 0 states and 0 transitions. [2018-11-18 11:14:34,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:14:34,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:14:34,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:14:34,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:14:34,839 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:14:34,839 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:14:34,839 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:14:34,839 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-18 11:14:34,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:14:34,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:14:34,839 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 11:14:34,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:14:34 BoogieIcfgContainer [2018-11-18 11:14:34,846 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:14:34,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:14:34,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:14:34,846 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:14:34,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:14:29" (3/4) ... [2018-11-18 11:14:34,851 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:14:34,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:14:34,852 INFO L168 Benchmark]: Toolchain (without parser) took 5651.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -154.9 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:34,853 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:14:34,853 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:34,854 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.64 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:34,854 INFO L168 Benchmark]: Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:14:34,855 INFO L168 Benchmark]: RCFGBuilder took 170.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:34,855 INFO L168 Benchmark]: BuchiAutomizer took 5272.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:14:34,856 INFO L168 Benchmark]: Witness Printer took 4.66 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. [2018-11-18 11:14:34,859 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.64 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5272.25 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.7 MB). Peak memory consumption was 67.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.66 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 11 terminating modules (0 trivial, 7 deterministic, 4 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 7 locations. One deterministic module has affine ranking function y and consists of 7 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 12 iterations. TraceHistogramMax:4. Analysis of lassos took 3.7s. Construction of modules took 0.1s. Büchi inclusion checks took 1.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 344 StatesRemovedByMinimization, 10 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 418 states and ocurred in iteration 9. Nontrivial modules had stage [7, 0, 4, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 284 SDtfs, 364 SDslu, 137 SDs, 0 SdLazy, 279 SolverSat, 90 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT11 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf98 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf92 smp100 dnf100 smp100 tf107 neg100 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 24 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 11 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...