./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_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_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:10:41,589 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:10:41,590 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:10:41,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:10:41,599 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:10:41,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:10:41,600 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:10:41,602 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:10:41,603 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:10:41,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:10:41,604 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:10:41,604 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:10:41,605 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:10:41,605 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:10:41,606 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:10:41,607 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:10:41,607 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:10:41,609 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:10:41,610 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:10:41,612 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:10:41,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:10:41,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:10:41,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:10:41,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:10:41,616 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:10:41,617 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:10:41,618 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:10:41,619 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:10:41,620 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:10:41,621 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:10:41,621 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:10:41,621 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:10:41,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:10:41,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:10:41,622 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:10:41,623 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:10:41,623 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 16:10:41,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:10:41,635 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:10:41,635 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:10:41,636 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:10:41,636 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:10:41,637 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:10:41,637 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:10:41,638 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:10:41,638 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:10:41,639 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:10:41,639 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:10:41,639 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:10:41,639 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:10:41,639 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:10:41,640 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:10:41,640 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:10:41,640 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:10:41,640 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:10:41,641 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:10:41,641 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_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-11-18 16:10:41,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:10:41,675 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:10:41,677 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:10:41,678 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:10:41,679 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:10:41,679 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-18 16:10:41,723 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/data/8f01f61dd/11f7d26980044f9f971463b87457f892/FLAGc21335a88 [2018-11-18 16:10:42,061 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:10:42,062 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-18 16:10:42,066 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/data/8f01f61dd/11f7d26980044f9f971463b87457f892/FLAGc21335a88 [2018-11-18 16:10:42,074 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/data/8f01f61dd/11f7d26980044f9f971463b87457f892 [2018-11-18 16:10:42,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:10:42,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:10:42,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:10:42,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:10:42,080 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:10:42,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,082 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4546e68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42, skipping insertion in model container [2018-11-18 16:10:42,082 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:10:42,099 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:10:42,202 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:10:42,204 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:10:42,214 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:10:42,222 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:10:42,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42 WrapperNode [2018-11-18 16:10:42,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:10:42,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:10:42,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:10:42,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:10:42,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,234 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:10:42,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:10:42,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:10:42,249 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:10:42,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... [2018-11-18 16:10:42,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:10:42,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:10:42,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:10:42,265 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:10:42,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:10:42,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:10:42,432 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:10:42,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:10:42 BoogieIcfgContainer [2018-11-18 16:10:42,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:10:42,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:10:42,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:10:42,436 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:10:42,437 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:10:42,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:10:42" (1/3) ... [2018-11-18 16:10:42,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@353a13bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:10:42, skipping insertion in model container [2018-11-18 16:10:42,437 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:10:42,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:10:42" (2/3) ... [2018-11-18 16:10:42,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@353a13bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:10:42, skipping insertion in model container [2018-11-18 16:10:42,438 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:10:42,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:10:42" (3/3) ... [2018-11-18 16:10:42,439 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-18 16:10:42,482 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:10:42,482 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:10:42,483 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:10:42,483 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:10:42,483 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:10:42,483 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:10:42,483 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:10:42,483 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:10:42,483 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:10:42,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 16:10:42,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 16:10:42,507 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:42,507 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:42,512 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 16:10:42,512 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:10:42,512 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:10:42,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 16:10:42,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 16:10:42,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:42,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:42,513 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 16:10:42,513 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:10:42,519 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23-2true [2018-11-18 16:10:42,519 INFO L796 eck$LassoCheckResult]: Loop: 5#L23-2true assume true; 11#L20-1true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 6#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 5#L23-2true [2018-11-18 16:10:42,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:42,523 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 16:10:42,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:42,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:42,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:42,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:42,582 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 1 times [2018-11-18 16:10:42,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:42,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:42,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:42,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:42,593 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-18 16:10:42,593 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:42,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:42,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:42,649 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:42,650 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:42,650 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:42,650 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:42,650 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:42,650 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:42,650 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:42,650 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:42,650 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 16:10:42,650 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:42,650 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:42,663 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 16:10:42,674 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 16:10:42,678 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 16:10:42,684 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 16:10:42,686 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 16:10:42,691 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 16:10:42,805 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:42,805 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,814 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:42,815 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:42,833 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:42,833 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_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,836 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:42,836 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:42,851 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:42,851 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_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:42,854 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:42,869 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:42,869 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,872 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:42,873 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:42,887 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:42,888 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:42,890 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:42,907 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:42,907 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:42,926 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:42,927 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:42,927 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:42,927 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:42,927 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:42,927 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:42,927 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:42,927 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:42,927 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:42,927 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 16:10:42,927 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:42,928 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:42,934 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 16:10:42,936 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 16:10:42,938 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 16:10:42,943 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 16:10:42,945 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 16:10:42,950 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 16:10:43,036 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:43,040 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:43,042 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 16:10:43,043 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,044 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,044 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,047 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:43,048 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:43,054 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:43,055 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 16:10:43,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,056 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,059 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:43,059 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:43,066 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:43,067 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 16:10:43,067 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,067 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:43,068 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,068 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,068 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,068 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:43,068 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:43,070 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:43,070 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 16:10:43,071 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,071 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:43,071 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,071 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,071 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,072 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:43,073 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:43,073 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:43,074 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 16:10:43,074 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,074 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:43,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,075 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,075 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,075 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:43,075 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:43,080 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:43,082 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:43,082 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:43,083 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:43,084 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:43,084 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:43,084 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 16:10:43,085 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:43,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:43,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:43,141 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:43,156 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 16:10:43,168 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 16:10:43,168 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2018-11-18 16:10:43,205 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 42 states and 51 transitions. Complement of second has 8 states. [2018-11-18 16:10:43,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 16:10:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:43,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2018-11-18 16:10:43,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-18 16:10:43,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 16:10:43,209 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,209 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 16:10:43,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,210 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2018-11-18 16:10:43,212 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:10:43,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 18 states and 24 transitions. [2018-11-18 16:10:43,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-18 16:10:43,217 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 16:10:43,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2018-11-18 16:10:43,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:10:43,219 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2018-11-18 16:10:43,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2018-11-18 16:10:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-18 16:10:43,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 16:10:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2018-11-18 16:10:43,241 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-11-18 16:10:43,241 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-11-18 16:10:43,241 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:10:43,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2018-11-18 16:10:43,242 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 16:10:43,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:43,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:43,242 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 16:10:43,242 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 16:10:43,242 INFO L794 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 96#L23-2 assume true; 98#L20-1 [2018-11-18 16:10:43,242 INFO L796 eck$LassoCheckResult]: Loop: 98#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 101#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 102#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 97#L23-2 assume true; 98#L20-1 [2018-11-18 16:10:43,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,243 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-18 16:10:43,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1297976, now seen corresponding path program 1 times [2018-11-18 16:10:43,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1805984218, now seen corresponding path program 1 times [2018-11-18 16:10:43,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,294 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:43,295 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:43,295 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:43,295 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:43,295 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:43,295 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:43,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:43,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 16:10:43,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:43,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:43,296 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 16:10:43,298 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 16:10:43,301 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 16:10:43,303 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 16:10:43,305 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 16:10:43,307 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 16:10:43,308 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 16:10:43,363 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:43,363 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,371 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,371 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,395 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,395 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_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,398 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,398 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,417 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:43,417 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,434 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:43,435 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:43,435 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:43,435 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:43,435 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:43,436 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:43,436 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,436 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:43,436 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:43,436 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 16:10:43,436 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:43,436 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:43,437 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 16:10:43,448 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 16:10:43,452 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 16:10:43,454 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 16:10:43,456 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 16:10:43,458 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 16:10:43,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:43,550 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:43,550 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:43,551 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 16:10:43,551 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:43,552 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:43,552 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:43,552 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:43,552 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:43,552 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:43,553 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:43,555 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:43,557 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:43,557 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:43,557 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:43,558 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:43,558 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:43,558 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 16:10:43,558 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:43,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:43,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:43,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:43,628 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 16:10:43,629 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:10:43,629 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-18 16:10:43,639 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 37 states and 50 transitions. Complement of second has 6 states. [2018-11-18 16:10:43,639 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 16:10:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:43,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-18 16:10:43,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-18 16:10:43,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-18 16:10:43,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2018-11-18 16:10:43,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:43,641 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2018-11-18 16:10:43,642 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 16:10:43,643 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 49 transitions. [2018-11-18 16:10:43,643 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-18 16:10:43,643 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-18 16:10:43,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 49 transitions. [2018-11-18 16:10:43,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:10:43,643 INFO L705 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-18 16:10:43,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 49 transitions. [2018-11-18 16:10:43,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2018-11-18 16:10:43,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-18 16:10:43,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2018-11-18 16:10:43,645 INFO L728 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-18 16:10:43,646 INFO L608 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-18 16:10:43,646 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:10:43,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2018-11-18 16:10:43,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 16:10:43,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:43,647 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:43,647 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 16:10:43,647 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 16:10:43,647 INFO L794 eck$LassoCheckResult]: Stem: 203#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 193#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 194#L23-2 assume true; 195#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 199#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 200#L23 [2018-11-18 16:10:43,647 INFO L796 eck$LassoCheckResult]: Loop: 200#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 204#L23-2 assume true; 211#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 210#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 200#L23 [2018-11-18 16:10:43,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,647 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-18 16:10:43,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1585078, now seen corresponding path program 1 times [2018-11-18 16:10:43,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:43,659 INFO L82 PathProgramCache]: Analyzing trace with hash 384105885, now seen corresponding path program 1 times [2018-11-18 16:10:43,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:43,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:43,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:43,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:43,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:43,692 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:43,692 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:43,692 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:43,693 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:43,693 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:43,693 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,693 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:43,693 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:43,693 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 16:10:43,693 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:43,693 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:43,694 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 16:10:43,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:43,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:43,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:43,706 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 16:10:43,709 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 16:10:43,716 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 16:10:43,769 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:43,769 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,771 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,774 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,774 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,789 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,790 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,791 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,828 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,828 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,845 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,845 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,848 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,850 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:43,851 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/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 16:10:43,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:43,866 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,882 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:43,882 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:43,923 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:43,924 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:43,925 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:43,925 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:43,925 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:43,925 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:43,925 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:43,925 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:43,925 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:43,925 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 16:10:43,925 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:43,925 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:43,926 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 16:10:43,928 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 16:10:43,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:43,933 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 16:10:43,935 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 16:10:43,950 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 16:10:43,957 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 16:10:44,001 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,002 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:44,002 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 16:10:44,002 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,002 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,003 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,003 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,003 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,003 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,004 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,005 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 16:10:44,005 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,005 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,005 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,005 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,005 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,006 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,006 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,011 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,011 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 16:10:44,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,013 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,013 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,013 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,013 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,013 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,016 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,016 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 16:10:44,016 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,016 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,016 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,017 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,017 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:44,018 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:44,021 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,021 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 16:10:44,021 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,021 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,022 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,022 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,022 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,022 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,022 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,023 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 16:10:44,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,024 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,024 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,024 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,024 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,024 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,026 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:44,029 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:44,029 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:44,029 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:44,029 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:44,030 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:44,030 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-18 16:10:44,030 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:44,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,075 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 16:10:44,075 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:10:44,075 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18 Second operand 4 states. [2018-11-18 16:10:44,099 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18. Second operand 4 states. Result 71 states and 99 transitions. Complement of second has 7 states. [2018-11-18 16:10:44,100 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 16:10:44,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:44,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-18 16:10:44,100 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-18 16:10:44,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:10:44,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,101 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-18 16:10:44,101 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 99 transitions. [2018-11-18 16:10:44,103 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 16:10:44,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 64 states and 89 transitions. [2018-11-18 16:10:44,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-18 16:10:44,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 16:10:44,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 89 transitions. [2018-11-18 16:10:44,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:10:44,105 INFO L705 BuchiCegarLoop]: Abstraction has 64 states and 89 transitions. [2018-11-18 16:10:44,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 89 transitions. [2018-11-18 16:10:44,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-11-18 16:10:44,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-18 16:10:44,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 87 transitions. [2018-11-18 16:10:44,109 INFO L728 BuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2018-11-18 16:10:44,109 INFO L608 BuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2018-11-18 16:10:44,109 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:10:44,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 87 transitions. [2018-11-18 16:10:44,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 16:10:44,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:44,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:44,111 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-11-18 16:10:44,111 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 16:10:44,111 INFO L794 eck$LassoCheckResult]: Stem: 356#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 346#L23-2 assume true; 347#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 402#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 401#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 378#L23-2 assume true; 377#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 364#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 365#L23 [2018-11-18 16:10:44,113 INFO L796 eck$LassoCheckResult]: Loop: 365#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 366#L23-2 assume true; 372#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 370#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 365#L23 [2018-11-18 16:10:44,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,113 INFO L82 PathProgramCache]: Analyzing trace with hash 384046303, now seen corresponding path program 2 times [2018-11-18 16:10:44,113 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:44,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1585078, now seen corresponding path program 2 times [2018-11-18 16:10:44,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,121 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,128 INFO L82 PathProgramCache]: Analyzing trace with hash 722118036, now seen corresponding path program 1 times [2018-11-18 16:10:44,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,129 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,167 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:44,167 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:44,168 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:44,168 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:44,168 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:44,168 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,168 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:44,168 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:44,168 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 16:10:44,168 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:44,168 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:44,169 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 16:10:44,171 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 16:10:44,174 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 16:10:44,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:44,182 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 16:10:44,185 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 16:10:44,186 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 16:10:44,227 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,227 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,229 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,229 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,231 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,231 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,246 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,246 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,249 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,265 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,265 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,282 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,283 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,301 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:44,301 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,342 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:44,344 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:44,344 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:44,344 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:44,344 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:44,344 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:44,344 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,344 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:44,344 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:44,344 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 16:10:44,345 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:44,345 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:44,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:44,348 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 16:10:44,349 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 16:10:44,352 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 16:10:44,356 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 16:10:44,371 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 16:10:44,375 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 16:10:44,411 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,411 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:44,411 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 16:10:44,412 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,412 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,412 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,412 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,412 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,412 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,412 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,413 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,414 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 16:10:44,414 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,414 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,414 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,414 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,414 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,415 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,415 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,415 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,416 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 16:10:44,416 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,416 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,416 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,416 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,416 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,417 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,417 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,419 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,419 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 16:10:44,419 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,420 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,420 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,420 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,420 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,420 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,420 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,426 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:44,427 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:44,427 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:44,427 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:44,427 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:44,428 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:44,428 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-18 16:10:44,428 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:44,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,446 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,459 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 16:10:44,459 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:10:44,459 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-18 16:10:44,471 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 86 states and 120 transitions. Complement of second has 7 states. [2018-11-18 16:10:44,472 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 16:10:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-18 16:10:44,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:10:44,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,473 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:10:44,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,482 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,485 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:10:44,501 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:10:44,501 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-18 16:10:44,515 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 81 states and 112 transitions. Complement of second has 7 states. [2018-11-18 16:10:44,515 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 16:10:44,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-18 16:10:44,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:10:44,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,516 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:10:44,523 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,530 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,539 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 16:10:44,539 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-18 16:10:44,539 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-18 16:10:44,553 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 117 states and 164 transitions. Complement of second has 9 states. [2018-11-18 16:10:44,553 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 16:10:44,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2018-11-18 16:10:44,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 16:10:44,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-18 16:10:44,554 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-18 16:10:44,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,555 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 164 transitions. [2018-11-18 16:10:44,556 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-18 16:10:44,557 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 87 states and 120 transitions. [2018-11-18 16:10:44,557 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-18 16:10:44,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-18 16:10:44,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 120 transitions. [2018-11-18 16:10:44,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:10:44,558 INFO L705 BuchiCegarLoop]: Abstraction has 87 states and 120 transitions. [2018-11-18 16:10:44,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 120 transitions. [2018-11-18 16:10:44,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 50. [2018-11-18 16:10:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-18 16:10:44,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 71 transitions. [2018-11-18 16:10:44,561 INFO L728 BuchiCegarLoop]: Abstraction has 50 states and 71 transitions. [2018-11-18 16:10:44,561 INFO L608 BuchiCegarLoop]: Abstraction has 50 states and 71 transitions. [2018-11-18 16:10:44,561 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 16:10:44,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 71 transitions. [2018-11-18 16:10:44,561 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:10:44,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:44,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:44,562 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-18 16:10:44,562 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:10:44,562 INFO L794 eck$LassoCheckResult]: Stem: 866#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 856#L23-2 assume true; 862#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 874#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 867#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 868#L23-2 assume true; 897#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 896#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 858#L23-2 [2018-11-18 16:10:44,562 INFO L796 eck$LassoCheckResult]: Loop: 858#L23-2 assume true; 875#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 857#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 858#L23-2 [2018-11-18 16:10:44,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,562 INFO L82 PathProgramCache]: Analyzing trace with hash 384105883, now seen corresponding path program 1 times [2018-11-18 16:10:44,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:44,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,568 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 2 times [2018-11-18 16:10:44,568 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:10:44,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1105490062, now seen corresponding path program 2 times [2018-11-18 16:10:44,571 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,571 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,572 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,603 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:44,603 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:44,603 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:44,603 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:44,604 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:44,604 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,604 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:44,604 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:44,604 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-18 16:10:44,604 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:44,604 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:44,604 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 16:10:44,607 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 16:10:44,614 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 16:10:44,616 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 16:10:44,619 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 16:10:44,621 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 16:10:44,672 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,672 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,675 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,689 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,690 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,692 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,692 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:44,723 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,739 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:44,740 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:44,740 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:44,741 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:44,741 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:44,741 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:44,741 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,741 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:44,741 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:44,741 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-18 16:10:44,741 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:44,741 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:44,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:44,754 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 16:10:44,755 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 16:10:44,758 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 16:10:44,759 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 16:10:44,761 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 16:10:44,783 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,783 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:44,784 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 16:10:44,784 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,784 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,785 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:44,785 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:44,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,787 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 16:10:44,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,788 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,788 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,788 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,788 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,789 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:44,789 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 16:10:44,790 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:44,790 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:44,790 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:44,790 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:44,790 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:44,790 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:44,790 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:44,792 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:44,794 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:44,794 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:44,794 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:44,794 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:44,794 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:44,794 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 16:10:44,795 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:44,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:44,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:44,831 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 16:10:44,831 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 16:10:44,831 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 71 transitions. cyclomatic complexity: 28 Second operand 4 states. [2018-11-18 16:10:44,838 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 71 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 145 states and 196 transitions. Complement of second has 7 states. [2018-11-18 16:10:44,838 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 16:10:44,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:44,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-18 16:10:44,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 16:10:44,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 16:10:44,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,839 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-18 16:10:44,839 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:44,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 196 transitions. [2018-11-18 16:10:44,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:10:44,842 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 120 states and 164 transitions. [2018-11-18 16:10:44,842 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2018-11-18 16:10:44,843 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-18 16:10:44,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 164 transitions. [2018-11-18 16:10:44,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 16:10:44,843 INFO L705 BuchiCegarLoop]: Abstraction has 120 states and 164 transitions. [2018-11-18 16:10:44,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 164 transitions. [2018-11-18 16:10:44,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2018-11-18 16:10:44,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-11-18 16:10:44,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2018-11-18 16:10:44,848 INFO L728 BuchiCegarLoop]: Abstraction has 95 states and 134 transitions. [2018-11-18 16:10:44,848 INFO L608 BuchiCegarLoop]: Abstraction has 95 states and 134 transitions. [2018-11-18 16:10:44,848 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 16:10:44,848 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 134 transitions. [2018-11-18 16:10:44,849 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 16:10:44,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:10:44,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:10:44,850 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1] [2018-11-18 16:10:44,850 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 16:10:44,850 INFO L794 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1110#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 1111#L23-2 assume true; 1152#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1120#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1121#L23-2 assume true; 1114#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1128#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 1129#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 1137#L23-2 assume true; 1136#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1130#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1119#L23-2 [2018-11-18 16:10:44,850 INFO L796 eck$LassoCheckResult]: Loop: 1119#L23-2 assume true; 1135#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1118#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1119#L23-2 [2018-11-18 16:10:44,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,850 INFO L82 PathProgramCache]: Analyzing trace with hash 776280728, now seen corresponding path program 3 times [2018-11-18 16:10:44,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,852 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,857 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 3 times [2018-11-18 16:10:44,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,858 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:44,861 INFO L82 PathProgramCache]: Analyzing trace with hash 2075252337, now seen corresponding path program 4 times [2018-11-18 16:10:44,861 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:10:44,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:10:44,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,862 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:10:44,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:10:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:10:44,878 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:44,878 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:44,878 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:44,878 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:44,878 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 16:10:44,878 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,878 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:44,878 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:44,878 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-18 16:10:44,878 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:44,879 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:44,879 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:44,881 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 16:10:44,882 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 16:10:44,884 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 16:10:44,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:44,898 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 16:10:44,923 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:44,923 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,926 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,926 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,941 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,941 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,943 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,943 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,958 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,958 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,963 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,963 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,978 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,978 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:44,983 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 16:10:44,983 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:44,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 16:10:44,998 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bb4bd8d4-dcf3-4be4-90b7-6aa9f8750029/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:45,015 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 16:10:45,015 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 16:10:45,032 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 16:10:45,033 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 16:10:45,033 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 16:10:45,033 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 16:10:45,033 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 16:10:45,034 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 16:10:45,034 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:10:45,034 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 16:10:45,034 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 16:10:45,034 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-18 16:10:45,034 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 16:10:45,034 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 16:10:45,035 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 16:10:45,037 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:45,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:45,041 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 16:10:45,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 16:10:45,046 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 16:10:45,081 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 16:10:45,081 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 16:10:45,082 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 16:10:45,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:45,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:45,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:45,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:45,083 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:45,083 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:45,085 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:45,085 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 16:10:45,086 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:45,086 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:45,086 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:45,086 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:45,086 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:45,086 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:45,086 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:45,087 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:45,087 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 16:10:45,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:45,087 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:45,088 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:45,088 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 16:10:45,088 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:45,088 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 16:10:45,088 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:45,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:45,090 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 16:10:45,090 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:45,090 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:45,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:45,091 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:45,091 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 16:10:45,091 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 16:10:45,092 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 16:10:45,092 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 16:10:45,093 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 16:10:45,093 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 16:10:45,093 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 16:10:45,093 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 16:10:45,093 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 16:10:45,093 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 16:10:45,093 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 16:10:45,094 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 16:10:45,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 16:10:45,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 16:10:45,096 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 16:10:45,096 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 16:10:45,096 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 16:10:45,096 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 16:10:45,096 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 16:10:45,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,125 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,132 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 16:10:45,132 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 16:10:45,133 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-18 16:10:45,141 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 159 states and 215 transitions. Complement of second has 7 states. [2018-11-18 16:10:45,141 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 16:10:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:45,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-18 16:10:45,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 16:10:45,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:45,142 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:10:45,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,168 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 16:10:45,168 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 16:10:45,168 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-18 16:10:45,175 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 159 states and 215 transitions. Complement of second has 7 states. [2018-11-18 16:10:45,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 16:10:45,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-18 16:10:45,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 16:10:45,176 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:45,176 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 16:10:45,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:10:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:10:45,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:10:45,199 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 16:10:45,200 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 16:10:45,200 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-18 16:10:45,206 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 187 states and 255 transitions. Complement of second has 6 states. [2018-11-18 16:10:45,207 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 16:10:45,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 16:10:45,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-18 16:10:45,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 16:10:45,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:45,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-18 16:10:45,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:45,208 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-18 16:10:45,208 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 16:10:45,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 255 transitions. [2018-11-18 16:10:45,210 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:10:45,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 0 states and 0 transitions. [2018-11-18 16:10:45,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 16:10:45,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 16:10:45,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 16:10:45,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:10:45,210 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:10:45,210 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:10:45,210 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:10:45,210 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 16:10:45,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:10:45,211 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 16:10:45,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 16:10:45,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:10:45 BoogieIcfgContainer [2018-11-18 16:10:45,215 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:10:45,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:10:45,216 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:10:45,216 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:10:45,216 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:10:42" (3/4) ... [2018-11-18 16:10:45,219 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:10:45,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:10:45,219 INFO L168 Benchmark]: Toolchain (without parser) took 3142.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 211.3 MB). Free memory was 960.2 MB in the beginning and 1.0 GB in the end (delta: -42.0 MB). Peak memory consumption was 169.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:10:45,220 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:10:45,220 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:10:45,221 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.37 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:10:45,221 INFO L168 Benchmark]: Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:10:45,221 INFO L168 Benchmark]: RCFGBuilder took 167.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:10:45,222 INFO L168 Benchmark]: BuchiAutomizer took 2782.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 113.6 MB). Peak memory consumption was 192.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:10:45,222 INFO L168 Benchmark]: Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:10:45,224 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.50 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 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 26.37 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.27 ms. Allocated memory is still 1.0 GB. Free memory is still 946.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 167.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -169.0 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2782.72 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 113.6 MB). Peak memory consumption was 192.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 73 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 115 SDtfs, 114 SDslu, 54 SDs, 0 SdLazy, 73 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...