./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 13:33:51,714 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:33:51,716 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:33:51,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:33:51,722 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:33:51,722 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:33:51,723 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:33:51,724 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:33:51,725 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:33:51,726 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:33:51,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:33:51,727 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:33:51,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:33:51,728 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:33:51,728 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:33:51,729 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:33:51,729 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:33:51,730 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:33:51,732 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:33:51,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:33:51,733 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:33:51,734 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:33:51,736 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:33:51,736 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:33:51,736 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:33:51,737 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:33:51,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:33:51,738 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:33:51,738 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:33:51,738 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:33:51,739 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:33:51,739 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:33:51,739 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:33:51,739 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:33:51,740 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:33:51,740 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:33:51,740 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 13:33:51,748 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:33:51,748 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:33:51,749 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:33:51,749 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:33:51,750 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 13:33:51,750 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 13:33:51,751 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 13:33:51,751 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:33:51,752 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 13:33:51,752 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:33:51,752 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 13:33:51,752 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:33:51,752 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:33:51,752 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 13:33:51,752 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:33:51,753 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:33:51,753 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 13:33:51,753 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 13:33:51,753 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_1e8339e2-668b-42bc-8681-53fc71a582d5/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-11-18 13:33:51,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:33:51,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:33:51,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:33:51,785 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:33:51,785 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:33:51,786 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-18 13:33:51,824 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/data/24b43d235/d15d91a7acb443ada878707c75fdcce3/FLAG534efe0dd [2018-11-18 13:33:52,234 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:33:52,235 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-18 13:33:52,238 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/data/24b43d235/d15d91a7acb443ada878707c75fdcce3/FLAG534efe0dd [2018-11-18 13:33:52,249 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/data/24b43d235/d15d91a7acb443ada878707c75fdcce3 [2018-11-18 13:33:52,251 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:33:52,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:33:52,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:33:52,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:33:52,254 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:33:52,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562934e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52, skipping insertion in model container [2018-11-18 13:33:52,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:33:52,272 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:33:52,374 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:33:52,376 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:33:52,386 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:33:52,394 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:33:52,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52 WrapperNode [2018-11-18 13:33:52,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:33:52,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:33:52,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:33:52,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:33:52,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,412 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:33:52,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:33:52,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:33:52,413 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:33:52,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... [2018-11-18 13:33:52,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:33:52,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:33:52,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:33:52,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:33:52,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:33:52,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:33:52,572 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:33:52,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:33:52 BoogieIcfgContainer [2018-11-18 13:33:52,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:33:52,573 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 13:33:52,573 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 13:33:52,575 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 13:33:52,576 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:33:52,576 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 01:33:52" (1/3) ... [2018-11-18 13:33:52,576 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73eb4b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:33:52, skipping insertion in model container [2018-11-18 13:33:52,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:33:52,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:33:52" (2/3) ... [2018-11-18 13:33:52,577 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73eb4b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:33:52, skipping insertion in model container [2018-11-18 13:33:52,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:33:52,577 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:33:52" (3/3) ... [2018-11-18 13:33:52,579 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-11-18 13:33:52,611 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:33:52,612 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 13:33:52,612 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 13:33:52,612 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 13:33:52,612 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:33:52,612 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:33:52,612 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 13:33:52,612 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:33:52,612 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 13:33:52,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 13:33:52,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:52,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:33:52,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:33:52,637 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 13:33:52,637 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:33:52,638 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 13:33:52,638 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 13:33:52,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:52,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:33:52,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:33:52,639 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 13:33:52,639 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:33:52,645 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 10#L21-2true [2018-11-18 13:33:52,645 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume true; 11#L20-1true assume !!(main_~i~0 < main_~n~0); 4#L21true assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 10#L21-2true [2018-11-18 13:33:52,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:52,650 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-18 13:33:52,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:52,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:52,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:52,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,717 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:52,717 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-11-18 13:33:52,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:52,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:52,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:52,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:52,725 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-18 13:33:52,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:52,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:52,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:52,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:52,765 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:52,766 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:52,766 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:52,766 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:52,766 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:33:52,766 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:52,766 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:52,766 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:52,766 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 13:33:52,767 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:52,767 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:52,784 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 13:33:52,795 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 13:33:52,799 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 13:33:52,803 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 13:33:52,850 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:52,850 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,853 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:52,853 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:52,872 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:52,872 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_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:52,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:52,903 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:52,903 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_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,910 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:52,910 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:52,926 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:52,926 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,929 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:52,929 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:52,945 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:33:52,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:53,050 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:33:53,051 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:53,051 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:53,051 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:53,051 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:53,051 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:33:53,051 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:53,051 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:53,051 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:53,051 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 13:33:53,052 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:53,052 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:53,053 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 13:33:53,055 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 13:33:53,058 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 13:33:53,072 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 13:33:53,138 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:53,142 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:33:53,143 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 13:33:53,144 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,144 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,147 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:33:53,147 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:33:53,153 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:33:53,153 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 13:33:53,154 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,154 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:53,154 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,154 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,154 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,155 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:53,155 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:53,156 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:33:53,156 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 13:33:53,157 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,157 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:53,157 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,157 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,157 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,158 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:53,158 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:53,163 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:33:53,166 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 13:33:53,166 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:33:53,168 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:33:53,168 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:33:53,168 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:33:53,169 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-18 13:33:53,170 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:33:53,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,198 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,207 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:53,208 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 13:33:53,221 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:33:53,222 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-18 13:33:53,252 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 32 states and 37 transitions. Complement of second has 6 states. [2018-11-18 13:33:53,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:33:53,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:33:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-18 13:33:53,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-18 13:33:53,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 13:33:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 13:33:53,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-11-18 13:33:53,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:53,260 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-11-18 13:33:53,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 13:33:53,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 13:33:53,261 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-18 13:33:53,261 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:33:53,262 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:33:53,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-18 13:33:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 13:33:53,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 13:33:53,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-18 13:33:53,277 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:33:53,277 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:33:53,277 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 13:33:53,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-18 13:33:53,277 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:53,278 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:33:53,278 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:33:53,278 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 13:33:53,278 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:33:53,278 INFO L794 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 91#L21-2 assume true; 94#L20-1 assume !!(main_~i~0 < main_~n~0); 86#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 87#L21-2 [2018-11-18 13:33:53,278 INFO L796 eck$LassoCheckResult]: Loop: 87#L21-2 assume true; 92#L20-1 assume !!(main_~i~0 < main_~n~0); 95#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 87#L21-2 [2018-11-18 13:33:53,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,278 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-11-18 13:33:53,278 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:53,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:53,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:53,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,301 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 13:33:53,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:33:53,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:33:53,303 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 13:33:53,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,304 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-11-18 13:33:53,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:53,304 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:53,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:53,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:53,319 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:53,319 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:53,319 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:53,319 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:53,319 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:33:53,319 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:53,319 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:53,319 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:53,319 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 13:33:53,319 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:53,320 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:53,320 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 13:33:53,322 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 13:33:53,324 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 13:33:53,335 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 13:33:53,372 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:53,373 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:53,379 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:53,395 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:53,395 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_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,397 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:53,397 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:53,412 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:53,412 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_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,414 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:53,414 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,430 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:33:53,431 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:53,534 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:33:53,535 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:53,535 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:53,535 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:53,535 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:53,535 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:33:53,535 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:53,535 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:53,535 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:53,535 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 13:33:53,535 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:53,535 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:53,536 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 13:33:53,538 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 13:33:53,539 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 13:33:53,543 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 13:33:53,565 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:53,565 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:33:53,565 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 13:33:53,566 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,566 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,566 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,566 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,568 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:33:53,568 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:33:53,572 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:33:53,572 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 13:33:53,573 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,573 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,573 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,573 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,575 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:33:53,575 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:33:53,579 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:33:53,580 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 13:33:53,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,580 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:53,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,581 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,581 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,581 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:53,581 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:53,585 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:33:53,590 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:33:53,590 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:33:53,590 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:33:53,590 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:33:53,591 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:33:53,591 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-11-18 13:33:53,591 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:33:53,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,639 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:53,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:53,645 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 13:33:53,645 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:33:53,645 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-18 13:33:53,652 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-11-18 13:33:53,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:33:53,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:33:53,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-18 13:33:53,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 13:33:53,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,653 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 13:33:53,653 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,654 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 13:33:53,654 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:53,654 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-11-18 13:33:53,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:53,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-11-18 13:33:53,655 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-18 13:33:53,655 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 13:33:53,655 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-18 13:33:53,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:33:53,656 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 13:33:53,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-18 13:33:53,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 13:33:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 13:33:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-18 13:33:53,657 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 13:33:53,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 13:33:53,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 13:33:53,660 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 3 states. [2018-11-18 13:33:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:33:53,668 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-11-18 13:33:53,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 13:33:53,668 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2018-11-18 13:33:53,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:53,670 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 24 transitions. [2018-11-18 13:33:53,670 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-18 13:33:53,670 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 13:33:53,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2018-11-18 13:33:53,670 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:33:53,670 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-11-18 13:33:53,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2018-11-18 13:33:53,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-11-18 13:33:53,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 13:33:53,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2018-11-18 13:33:53,672 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-18 13:33:53,672 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-18 13:33:53,672 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 13:33:53,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2018-11-18 13:33:53,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:33:53,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:33:53,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:33:53,674 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1] [2018-11-18 13:33:53,674 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:33:53,674 INFO L794 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 201#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 207#L21-2 assume true; 209#L20-1 assume !!(main_~i~0 < main_~n~0); 210#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 217#L21-2 assume true; 216#L20-1 assume !!(main_~i~0 < main_~n~0); 215#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 212#L21-2 assume true; 208#L20-1 assume !!(main_~i~0 < main_~n~0); 202#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 203#L21-2 [2018-11-18 13:33:53,674 INFO L796 eck$LassoCheckResult]: Loop: 203#L21-2 assume true; 214#L20-1 assume !!(main_~i~0 < main_~n~0); 213#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 203#L21-2 [2018-11-18 13:33:53,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,674 INFO L82 PathProgramCache]: Analyzing trace with hash -222458486, now seen corresponding path program 1 times [2018-11-18 13:33:53,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:53,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:53,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,676 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:33:53,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:33:53,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 13:33:53,700 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 13:33:53,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:53,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:53,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:33:53,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 13:33:53,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-11-18 13:33:53,744 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 13:33:53,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:53,744 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 3 times [2018-11-18 13:33:53,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:53,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:53,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:53,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:53,769 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:53,769 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:53,769 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:53,770 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:53,770 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:33:53,770 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:53,770 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:53,770 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:53,770 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 13:33:53,770 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:53,770 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:53,771 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 13:33:53,775 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 13:33:53,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:33:53,779 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 13:33:53,803 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:53,803 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,806 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:53,806 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:53,827 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:33:53,827 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:53,948 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:33:53,949 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:53,949 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:53,949 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:53,949 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:53,949 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:33:53,949 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:53,950 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:53,950 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:53,950 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 13:33:53,950 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:53,950 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:53,951 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 13:33:53,956 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 13:33:53,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:33:53,959 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:33:53,981 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:53,981 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:33:53,981 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 13:33:53,982 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:53,982 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:53,982 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:53,982 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:53,982 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:53,983 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:53,983 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:53,986 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:33:53,990 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:33:53,990 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:33:53,990 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:33:53,990 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:33:53,990 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:33:53,990 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-11-18 13:33:53,991 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:33:54,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,012 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,016 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 13:33:54,016 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:33:54,016 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-18 13:33:54,021 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 28 transitions. Complement of second has 5 states. [2018-11-18 13:33:54,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:33:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:33:54,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-18 13:33:54,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 13:33:54,023 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,023 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 13:33:54,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,043 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,047 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 13:33:54,047 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:33:54,047 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-18 13:33:54,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 28 transitions. Complement of second has 5 states. [2018-11-18 13:33:54,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:33:54,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:33:54,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-18 13:33:54,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 13:33:54,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,053 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 13:33:54,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,086 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 13:33:54,086 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:33:54,086 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-18 13:33:54,091 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 25 states and 32 transitions. Complement of second has 4 states. [2018-11-18 13:33:54,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:33:54,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:33:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-18 13:33:54,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 13:33:54,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-18 13:33:54,093 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-18 13:33:54,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2018-11-18 13:33:54,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 13:33:54,096 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 26 transitions. [2018-11-18 13:33:54,096 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 13:33:54,096 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 13:33:54,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2018-11-18 13:33:54,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:33:54,096 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-18 13:33:54,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2018-11-18 13:33:54,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 10. [2018-11-18 13:33:54,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 13:33:54,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-11-18 13:33:54,097 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-18 13:33:54,097 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:33:54,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:33:54,098 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 5 states. [2018-11-18 13:33:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:33:54,104 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-18 13:33:54,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 13:33:54,105 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2018-11-18 13:33:54,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-11-18 13:33:54,106 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2018-11-18 13:33:54,106 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 13:33:54,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 13:33:54,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-11-18 13:33:54,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:33:54,106 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-18 13:33:54,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-11-18 13:33:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-11-18 13:33:54,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-18 13:33:54,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-11-18 13:33:54,107 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-18 13:33:54,107 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-11-18 13:33:54,107 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 13:33:54,108 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-11-18 13:33:54,108 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 13:33:54,108 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:33:54,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:33:54,108 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 13:33:54,108 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2018-11-18 13:33:54,109 INFO L794 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 509#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 510#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 512#L21-2 [2018-11-18 13:33:54,109 INFO L796 eck$LassoCheckResult]: Loop: 512#L21-2 assume true; 516#L20-1 assume !!(main_~i~0 < main_~n~0); 513#L21 assume main_~j~0 < main_~m~0;main_~j~0 := 1 + main_~j~0; 514#L21-2 assume true; 517#L20-1 assume !!(main_~i~0 < main_~n~0); 511#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := 1 + main_~i~0; 512#L21-2 [2018-11-18 13:33:54,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,109 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2018-11-18 13:33:54,109 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:54,109 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:54,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,110 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:33:54,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1159564227, now seen corresponding path program 1 times [2018-11-18 13:33:54,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:54,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:54,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,115 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:33:54,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,120 INFO L82 PathProgramCache]: Analyzing trace with hash -591248476, now seen corresponding path program 2 times [2018-11-18 13:33:54,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:33:54,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:33:54,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:33:54,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:33:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:33:54,156 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:54,156 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:54,156 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:54,156 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:54,156 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:33:54,156 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:54,157 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:54,157 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:54,157 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 13:33:54,157 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:54,157 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:54,158 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 13:33:54,165 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 13:33:54,168 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 13:33:54,170 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 13:33:54,214 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:54,214 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:54,219 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:54,219 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:54,222 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:33:54,222 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:54,237 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:33:54,237 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1e8339e2-668b-42bc-8681-53fc71a582d5/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 13:33:54,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:33:54,253 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:33:54,344 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:33:54,345 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:33:54,345 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:33:54,345 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:33:54,345 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:33:54,345 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:33:54,346 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:33:54,346 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:33:54,346 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:33:54,346 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 13:33:54,346 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:33:54,346 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:33:54,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:33:54,352 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 13:33:54,355 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 13:33:54,356 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 13:33:54,385 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:33:54,385 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:33:54,385 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 13:33:54,386 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:54,386 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:54,386 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:54,386 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:54,386 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:54,387 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:54,387 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:54,388 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:33:54,389 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 13:33:54,389 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:33:54,389 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:33:54,390 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:33:54,390 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:33:54,390 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:33:54,390 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:33:54,390 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:33:54,392 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:33:54,394 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:33:54,394 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:33:54,394 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:33:54,395 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:33:54,395 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:33:54,395 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 13:33:54,396 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:33:54,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:33:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:33:54,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:33:54,446 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 13:33:54,446 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 13:33:54,446 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-18 13:33:54,452 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 17 states and 20 transitions. Complement of second has 6 states. [2018-11-18 13:33:54,452 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 13:33:54,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:33:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 13:33:54,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 13:33:54,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-18 13:33:54,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 12 letters. [2018-11-18 13:33:54,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:33:54,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2018-11-18 13:33:54,453 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:33:54,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2018-11-18 13:33:54,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 13:33:54,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 13:33:54,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 13:33:54,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:33:54,454 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:33:54,454 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:33:54,454 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:33:54,454 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 13:33:54,454 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:33:54,455 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:33:54,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 13:33:54,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 01:33:54 BoogieIcfgContainer [2018-11-18 13:33:54,459 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 13:33:54,459 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:33:54,459 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:33:54,459 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:33:54,460 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:33:52" (3/4) ... [2018-11-18 13:33:54,462 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:33:54,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:33:54,462 INFO L168 Benchmark]: Toolchain (without parser) took 2211.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -160.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:33:54,463 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:33:54,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 143.06 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:33:54,464 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:33:54,464 INFO L168 Benchmark]: Boogie Preprocessor took 10.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:33:54,465 INFO L168 Benchmark]: RCFGBuilder took 149.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:33:54,465 INFO L168 Benchmark]: BuchiAutomizer took 1886.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:33:54,465 INFO L168 Benchmark]: Witness Printer took 2.69 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 13:33:54,467 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 143.06 ms. Allocated memory is still 1.0 GB. Free memory was 961.9 MB in the beginning and 951.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.15 ms. Allocated memory is still 1.0 GB. Free memory was 951.2 MB in the beginning and 945.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 149.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1886.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.69 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 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function m + -1 * j and consists of 4 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 66 SDtfs, 53 SDslu, 26 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...