./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 f9de9875f09e594325a645528f016ce12ac5c646 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:37:29,573 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:37:29,574 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:37:29,581 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:37:29,582 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:37:29,582 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:37:29,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:37:29,584 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:37:29,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:37:29,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:37:29,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:37:29,587 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:37:29,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:37:29,588 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:37:29,589 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:37:29,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:37:29,590 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:37:29,591 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:37:29,593 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:37:29,594 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:37:29,594 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:37:29,595 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:37:29,597 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:37:29,597 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:37:29,597 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:37:29,598 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:37:29,599 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:37:29,599 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:37:29,600 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:37:29,600 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:37:29,600 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:37:29,600 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:37:29,601 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:37:29,601 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:37:29,601 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:37:29,601 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:37:29,602 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 13:37:29,610 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:37:29,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:37:29,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:37:29,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:37:29,611 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:37:29,612 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 13:37:29,612 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 13:37:29,612 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 13:37:29,612 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 13:37:29,612 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 13:37:29,612 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 13:37:29,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:37:29,613 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 13:37:29,614 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:37:29,614 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 13:37:29,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:37:29,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:37:29,614 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 13:37:29,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:37:29,614 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:37:29,615 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 13:37:29,615 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 13:37:29,615 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-11-23 13:37:29,638 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:37:29,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:37:29,650 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:37:29,651 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:37:29,651 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:37:29,652 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 13:37:29,691 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/data/d8a364a6f/ebb68e4f94f64ff28b2db033c785c454/FLAG9b2eec378 [2018-11-23 13:37:30,080 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:37:30,080 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 13:37:30,084 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/data/d8a364a6f/ebb68e4f94f64ff28b2db033c785c454/FLAG9b2eec378 [2018-11-23 13:37:30,092 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/bin-2019/uautomizer/data/d8a364a6f/ebb68e4f94f64ff28b2db033c785c454 [2018-11-23 13:37:30,094 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:37:30,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:37:30,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:37:30,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:37:30,099 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:37:30,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd9ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30, skipping insertion in model container [2018-11-23 13:37:30,102 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:37:30,116 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:37:30,211 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:37:30,213 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:37:30,222 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:37:30,229 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:37:30,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30 WrapperNode [2018-11-23 13:37:30,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:37:30,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:37:30,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:37:30,230 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:37:30,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:37:30,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:37:30,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:37:30,257 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:37:30,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,263 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,263 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... [2018-11-23 13:37:30,303 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:37:30,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:37:30,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:37:30,303 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:37:30,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:37:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:37:30,447 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:37:30,447 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 13:37:30,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:30 BoogieIcfgContainer [2018-11-23 13:37:30,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:37:30,448 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 13:37:30,448 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 13:37:30,451 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 13:37:30,452 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:37:30,452 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:37:30" (1/3) ... [2018-11-23 13:37:30,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@292bd2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:37:30, skipping insertion in model container [2018-11-23 13:37:30,453 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:37:30,453 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:37:30" (2/3) ... [2018-11-23 13:37:30,453 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@292bd2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:37:30, skipping insertion in model container [2018-11-23 13:37:30,454 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:37:30,454 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:30" (3/3) ... [2018-11-23 13:37:30,455 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 13:37:30,503 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:37:30,503 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 13:37:30,504 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 13:37:30,504 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 13:37:30,504 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:37:30,504 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:37:30,504 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 13:37:30,504 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:37:30,504 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 13:37:30,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 13:37:30,536 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:30,537 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:30,537 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:30,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 13:37:30,543 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:30,543 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 13:37:30,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 13:37:30,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:30,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:30,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:30,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 13:37:30,545 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:30,552 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 7#L21-2true [2018-11-23 13:37:30,553 INFO L796 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 3#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 7#L21-2true [2018-11-23 13:37:30,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:30,558 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 13:37:30,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:30,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:30,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:30,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:30,651 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-23 13:37:30,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:30,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:30,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:30,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:30,668 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-23 13:37:30,669 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:30,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:30,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:30,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:30,792 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:30,793 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:30,793 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:30,793 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:30,794 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:30,794 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:30,794 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:30,794 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:30,794 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 13:37:30,794 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:30,795 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:30,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:30,946 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:30,946 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:30,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:30,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:30,978 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:30,979 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:30,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:30,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:30,999 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,000 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,020 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,020 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,023 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,023 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,027 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,027 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,055 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,055 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,074 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:31,075 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,096 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:31,097 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:31,097 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:31,098 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:31,098 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:31,098 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:31,098 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:31,098 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:31,098 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:31,098 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 13:37:31,098 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:31,099 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:31,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,136 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,223 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:31,227 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:31,229 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 [2018-11-23 13:37:31,230 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,230 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,230 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,230 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,234 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:31,234 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:31,241 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,242 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 [2018-11-23 13:37:31,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,245 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:31,245 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:31,252 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,252 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 [2018-11-23 13:37:31,253 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,253 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:31,253 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,253 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,254 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,254 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:31,254 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:31,255 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,256 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 [2018-11-23 13:37:31,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,256 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:31,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,257 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:31,257 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:31,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,262 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:37:31,263 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,263 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:31,263 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,263 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,264 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:31,264 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:31,268 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:31,270 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:31,270 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:31,272 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:31,272 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:31,272 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:31,273 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 13:37:31,274 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:31,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:31,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:31,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:31,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:31,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:31,332 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 [2018-11-23 13:37:31,333 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-23 13:37:31,368 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 8 states. [2018-11-23 13:37:31,369 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 [2018-11-23 13:37:31,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-11-23 13:37:31,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 13:37:31,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 13:37:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 13:37:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,372 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-23 13:37:31,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:31,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-23 13:37:31,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 13:37:31,378 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 13:37:31,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-23 13:37:31,378 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:37:31,378 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 13:37:31,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-23 13:37:31,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-23 13:37:31,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 13:37:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-23 13:37:31,394 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 13:37:31,394 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 13:37:31,394 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 13:37:31,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-23 13:37:31,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:31,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:31,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:31,395 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 13:37:31,395 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:31,395 INFO L794 eck$LassoCheckResult]: Stem: 71#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 72#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 67#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 68#L21-2 [2018-11-23 13:37:31,395 INFO L796 eck$LassoCheckResult]: Loop: 68#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 73#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 68#L21-2 [2018-11-23 13:37:31,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,396 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-23 13:37:31,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:31,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-23 13:37:31,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:31,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,409 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-11-23 13:37:31,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,411 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:31,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,447 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:31,447 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:31,447 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:31,447 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:31,447 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:31,447 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:31,447 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:31,447 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:31,448 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 13:37:31,448 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:31,448 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:31,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,506 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:31,506 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,514 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,530 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,530 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,533 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,533 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,537 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,537 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,552 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,553 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,576 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,576 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,585 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,586 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,605 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:31,605 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,630 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:31,631 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:31,631 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:31,631 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:31,631 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:31,631 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:31,631 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:31,631 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:31,632 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:31,632 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 13:37:31,632 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:31,632 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:31,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,642 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,691 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:31,692 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:31,692 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 [2018-11-23 13:37:31,693 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,693 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,693 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,693 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,695 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:31,695 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:31,698 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,698 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 [2018-11-23 13:37:31,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,699 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:31,699 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,699 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 13:37:31,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,700 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 13:37:31,700 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:31,703 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,704 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 [2018-11-23 13:37:31,704 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,704 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,705 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:31,706 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:31,710 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:31,710 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 [2018-11-23 13:37:31,711 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:31,711 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:31,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:31,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:31,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:31,712 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:31,712 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:31,715 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:31,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:31,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:31,718 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:31,718 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:31,718 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:31,718 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 13:37:31,719 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:31,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:31,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:31,746 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:31,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:31,754 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 [2018-11-23 13:37:31,755 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-23 13:37:31,763 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-11-23 13:37:31,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:31,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:31,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 13:37:31,765 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 13:37:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 13:37:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,766 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-23 13:37:31,766 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:31,766 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-23 13:37:31,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:31,767 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-23 13:37:31,768 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-23 13:37:31,768 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 13:37:31,768 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-23 13:37:31,768 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:37:31,768 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 13:37:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-23 13:37:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-23 13:37:31,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 13:37:31,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-23 13:37:31,770 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 13:37:31,770 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 13:37:31,770 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 13:37:31,770 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2018-11-23 13:37:31,771 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:37:31,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:31,771 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:31,771 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2018-11-23 13:37:31,771 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:31,771 INFO L794 eck$LassoCheckResult]: Stem: 125#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 126#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 121#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 122#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 129#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 127#L21-2 [2018-11-23 13:37:31,771 INFO L796 eck$LassoCheckResult]: Loop: 127#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 128#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 127#L21-2 [2018-11-23 13:37:31,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,772 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2018-11-23 13:37:31,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:31,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,782 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-23 13:37:31,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,783 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:31,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:31,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2018-11-23 13:37:31,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:31,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:31,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,789 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:31,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:31,820 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:31,820 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:31,820 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:31,820 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:31,820 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:31,820 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:31,820 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:31,820 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:31,820 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 13:37:31,820 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:31,820 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:31,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,886 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:31,887 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,889 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,892 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:31,892 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,906 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:31,906 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:31,923 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:31,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:31,938 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:31,939 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:31,940 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:31,940 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:31,940 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:31,940 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:31,940 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:31,940 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:31,940 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:31,940 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 13:37:31,940 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:31,940 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:31,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,946 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:31,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,012 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,013 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:32,013 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 [2018-11-23 13:37:32,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,014 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,014 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,014 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 13:37:32,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,015 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 13:37:32,015 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,020 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,021 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 [2018-11-23 13:37:32,021 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,021 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,021 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,021 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,022 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,022 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,022 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,025 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:32,026 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:32,026 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:32,027 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:32,027 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:32,027 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:32,027 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 13:37:32,027 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:32,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,046 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,056 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 [2018-11-23 13:37:32,056 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-23 13:37:32,062 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-23 13:37:32,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 13:37:32,063 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 13:37:32,063 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,063 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 13:37:32,069 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,076 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,086 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 [2018-11-23 13:37:32,086 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-23 13:37:32,093 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2018-11-23 13:37:32,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 13:37:32,093 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 13:37:32,094 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,094 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 13:37:32,100 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,104 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,107 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,112 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 [2018-11-23 13:37:32,112 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-23 13:37:32,117 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2018-11-23 13:37:32,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-23 13:37:32,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 13:37:32,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 13:37:32,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,119 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 13:37:32,119 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,119 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2018-11-23 13:37:32,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 13:37:32,120 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2018-11-23 13:37:32,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-23 13:37:32,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 13:37:32,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-23 13:37:32,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:37:32,121 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-23 13:37:32,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-23 13:37:32,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2018-11-23 13:37:32,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 13:37:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-23 13:37:32,122 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-23 13:37:32,122 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-23 13:37:32,122 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 13:37:32,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-23 13:37:32,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 13:37:32,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:32,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:32,123 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 13:37:32,123 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:32,123 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 269#L21-2 [2018-11-23 13:37:32,123 INFO L796 eck$LassoCheckResult]: Loop: 269#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 268#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 269#L21-2 [2018-11-23 13:37:32,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,123 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-23 13:37:32,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,125 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,127 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2018-11-23 13:37:32,127 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,128 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,131 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2018-11-23 13:37:32,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:32,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,151 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,151 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,151 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,151 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,151 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:32,151 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,151 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,151 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,151 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 13:37:32,151 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,151 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,205 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,205 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,207 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,224 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:32,225 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,240 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:32,241 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,241 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,241 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,241 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,242 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:32,242 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,242 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,242 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,242 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 13:37:32,242 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,242 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,295 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,295 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:32,295 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 [2018-11-23 13:37:32,296 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,296 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,296 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,296 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,296 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,296 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,298 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:32,299 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:32,299 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:32,299 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:32,300 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:32,300 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:32,300 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-23 13:37:32,300 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:32,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,324 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 [2018-11-23 13:37:32,324 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 13:37:32,330 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 5 states. [2018-11-23 13:37:32,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2018-11-23 13:37:32,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 13:37:32,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 13:37:32,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 3 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 13:37:32,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2018-11-23 13:37:32,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 13:37:32,332 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 9 states and 13 transitions. [2018-11-23 13:37:32,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 13:37:32,332 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 13:37:32,332 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 13 transitions. [2018-11-23 13:37:32,332 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:37:32,332 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2018-11-23 13:37:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 13 transitions. [2018-11-23 13:37:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-11-23 13:37:32,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 13:37:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 12 transitions. [2018-11-23 13:37:32,333 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-23 13:37:32,333 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 12 transitions. [2018-11-23 13:37:32,333 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 13:37:32,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 12 transitions. [2018-11-23 13:37:32,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-23 13:37:32,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:32,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:32,335 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-23 13:37:32,335 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:37:32,335 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 319#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 320#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 321#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-11-23 13:37:32,335 INFO L796 eck$LassoCheckResult]: Loop: 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 315#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 314#L21 [2018-11-23 13:37:32,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,336 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-23 13:37:32,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,337 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-23 13:37:32,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,343 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,361 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 3 times [2018-11-23 13:37:32,361 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,361 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,362 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,393 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,393 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,393 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,393 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,393 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:32,394 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,394 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,394 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,394 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-23 13:37:32,394 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,394 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,440 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,440 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,442 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,442 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,458 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:32,459 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,506 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:32,507 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,507 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,507 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,507 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,507 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:32,507 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,507 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,507 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,508 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-23 13:37:32,508 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,508 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,555 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,555 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:32,555 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 [2018-11-23 13:37:32,556 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,556 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,556 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,556 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,556 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,556 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,557 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,559 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:32,561 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:32,562 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:32,562 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:32,562 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:32,562 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:32,562 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-23 13:37:32,563 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:32,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,574 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,584 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 [2018-11-23 13:37:32,584 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-23 13:37:32,593 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-11-23 13:37:32,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-23 13:37:32,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 13:37:32,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,594 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 13:37:32,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,605 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,609 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 [2018-11-23 13:37:32,609 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-23 13:37:32,617 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 10 states and 14 transitions. Complement of second has 5 states. [2018-11-23 13:37:32,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2018-11-23 13:37:32,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 13:37:32,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,617 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 13:37:32,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:32,628 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:32,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:32,632 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 [2018-11-23 13:37:32,632 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-23 13:37:32,642 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 12 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 4 states. [2018-11-23 13:37:32,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:37:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:37:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-23 13:37:32,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 13:37:32,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 13:37:32,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 13:37:32,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:32,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2018-11-23 13:37:32,645 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-23 13:37:32,646 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 16 transitions. [2018-11-23 13:37:32,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-11-23 13:37:32,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-11-23 13:37:32,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-23 13:37:32,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:37:32,647 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 13:37:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-23 13:37:32,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2018-11-23 13:37:32,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 13:37:32,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-23 13:37:32,648 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 13:37:32,648 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 13:37:32,648 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 13:37:32,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-23 13:37:32,648 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 13:37:32,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:37:32,649 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:37:32,649 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-23 13:37:32,649 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-11-23 13:37:32,649 INFO L794 eck$LassoCheckResult]: Stem: 445#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 446#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-11-23 13:37:32,649 INFO L796 eck$LassoCheckResult]: Loop: 441#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 442#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 443#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 444#L21-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 441#L21 [2018-11-23 13:37:32,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,649 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 3 times [2018-11-23 13:37:32,649 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,650 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2018-11-23 13:37:32,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,654 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 13:37:32,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,660 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:32,660 INFO L82 PathProgramCache]: Analyzing trace with hash 602329151, now seen corresponding path program 4 times [2018-11-23 13:37:32,660 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:37:32,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:37:32,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:37:32,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:37:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:37:32,704 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,704 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,704 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,704 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,704 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:37:32,705 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,705 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,705 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,705 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-23 13:37:32,705 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,705 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,755 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,755 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,757 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,757 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:32,772 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,775 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,775 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,800 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:32,800 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,805 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,805 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,808 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:32,808 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=2, ULTIMATE.start_main_~d~0=2} Honda state: {ULTIMATE.start_main_#t~nondet4=2, ULTIMATE.start_main_~d~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,825 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,825 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:32,832 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_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,848 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,848 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,851 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:37:32,851 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=4, ULTIMATE.start_main_~x~0=3} Honda state: {ULTIMATE.start_main_#t~nondet5=4, ULTIMATE.start_main_~x~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,865 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:37:32,866 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d53026da-ac71-4957-9a61-ab43253ab74b/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 [2018-11-23 13:37:32,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:37:32,883 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:37:32,922 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:37:32,924 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:37:32,924 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:37:32,924 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:37:32,924 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:37:32,924 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:37:32,924 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:37:32,924 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:37:32,924 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:37:32,924 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-23 13:37:32,924 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:37:32,924 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:37:32,925 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:37:32,967 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:37:32,967 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:37:32,967 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 [2018-11-23 13:37:32,967 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,968 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,968 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,968 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,968 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,968 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,968 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,970 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,970 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:37:32,970 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,970 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,970 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,970 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,971 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:32,971 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:32,974 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,974 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 [2018-11-23 13:37:32,974 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,974 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,975 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,975 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,975 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,975 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,975 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,975 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,976 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 [2018-11-23 13:37:32,976 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,976 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,976 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,976 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,976 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,977 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,977 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,978 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,979 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 [2018-11-23 13:37:32,979 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,979 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,979 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,980 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,980 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:37:32,981 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:37:32,982 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:37:32,983 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 [2018-11-23 13:37:32,983 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:37:32,983 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:37:32,983 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:37:32,983 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:37:32,984 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:37:32,984 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:37:32,984 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:37:32,986 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:37:32,987 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:37:32,987 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:37:32,988 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:37:32,988 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:37:32,988 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:37:32,988 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 13:37:32,988 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:37:33,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:37:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:33,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:33,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:37:33,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:37:33,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:37:33,036 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 [2018-11-23 13:37:33,036 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-23 13:37:33,046 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 29 transitions. Complement of second has 6 states. [2018-11-23 13:37:33,046 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 [2018-11-23 13:37:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 13:37:33,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-23 13:37:33,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 13:37:33,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:33,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-23 13:37:33,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:33,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-23 13:37:33,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:37:33,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2018-11-23 13:37:33,048 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:37:33,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2018-11-23 13:37:33,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 13:37:33,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 13:37:33,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 13:37:33,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 13:37:33,049 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:37:33,049 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:37:33,049 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:37:33,049 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-23 13:37:33,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:37:33,049 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:37:33,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 13:37:33,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:37:33 BoogieIcfgContainer [2018-11-23 13:37:33,054 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 13:37:33,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:37:33,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:37:33,054 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:37:33,054 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:37:30" (3/4) ... [2018-11-23 13:37:33,057 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:37:33,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:37:33,057 INFO L168 Benchmark]: Toolchain (without parser) took 2962.45 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -90.0 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,058 INFO L168 Benchmark]: CDTParser took 0.14 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. [2018-11-23 13:37:33,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.15 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,059 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,059 INFO L168 Benchmark]: Boogie Preprocessor took 46.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,060 INFO L168 Benchmark]: RCFGBuilder took 144.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,060 INFO L168 Benchmark]: BuchiAutomizer took 2605.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:37:33,060 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:37:33,063 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.15 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.97 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 144.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2605.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.3 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.81 ms. Allocated memory is still 1.3 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 x and consists of 3 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 41 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 57 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax147 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 13 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...