./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/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 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:03:19,567 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:03:19,569 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:03:19,577 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:03:19,577 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:03:19,578 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:03:19,579 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:03:19,580 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:03:19,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:03:19,581 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:03:19,582 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:03:19,582 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:03:19,583 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:03:19,584 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:03:19,584 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:03:19,585 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:03:19,586 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:03:19,587 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:03:19,588 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:03:19,589 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:03:19,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:03:19,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:03:19,593 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:03:19,593 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:03:19,593 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:03:19,594 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:03:19,594 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:03:19,595 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:03:19,595 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:03:19,596 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:03:19,596 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:03:19,597 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:03:19,597 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:03:19,597 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:03:19,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:03:19,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:03:19,599 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 08:03:19,610 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:03:19,610 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:03:19,611 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:03:19,611 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:03:19,611 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:03:19,611 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:03:19,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:03:19,612 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:03:19,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:03:19,614 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:03:19,614 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:03:19,614 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:03:19,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:03:19,614 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:03:19,614 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:03:19,615 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:03:19,615 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_b91efdea-de3d-4209-8d86-2a8745ff1cdb/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 -> 1b43ce72b37c8e17b4dbab62d6d09279867a7da3 [2018-11-10 08:03:19,635 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:03:19,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:03:19,647 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:03:19,648 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:03:19,649 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:03:19,649 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 08:03:19,689 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/data/2b724c4e0/9fd0e97981d14a748c8dc6d9eb75b768/FLAG28c782b64 [2018-11-10 08:03:20,075 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:03:20,075 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 08:03:20,079 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/data/2b724c4e0/9fd0e97981d14a748c8dc6d9eb75b768/FLAG28c782b64 [2018-11-10 08:03:20,088 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/data/2b724c4e0/9fd0e97981d14a748c8dc6d9eb75b768 [2018-11-10 08:03:20,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:03:20,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:03:20,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:03:20,091 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:03:20,093 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:03:20,094 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,095 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20, skipping insertion in model container [2018-11-10 08:03:20,095 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:03:20,110 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:03:20,203 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:03:20,206 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:03:20,215 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:03:20,224 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:03:20,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20 WrapperNode [2018-11-10 08:03:20,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:03:20,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:03:20,225 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:03:20,225 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:03:20,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,250 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:03:20,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:03:20,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:03:20,251 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:03:20,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... [2018-11-10 08:03:20,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:03:20,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:03:20,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:03:20,267 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:03:20,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:03:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:03:20,467 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:03:20,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:03:20 BoogieIcfgContainer [2018-11-10 08:03:20,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:03:20,468 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:03:20,468 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:03:20,471 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:03:20,471 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:03:20,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:03:20" (1/3) ... [2018-11-10 08:03:20,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7412faff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:03:20, skipping insertion in model container [2018-11-10 08:03:20,473 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:03:20,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:03:20" (2/3) ... [2018-11-10 08:03:20,473 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7412faff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:03:20, skipping insertion in model container [2018-11-10 08:03:20,473 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:03:20,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:03:20" (3/3) ... [2018-11-10 08:03:20,474 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c [2018-11-10 08:03:20,524 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:03:20,524 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:03:20,525 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:03:20,525 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:03:20,525 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:03:20,525 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:03:20,525 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:03:20,525 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:03:20,525 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:03:20,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-10 08:03:20,557 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 08:03:20,557 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:20,557 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:20,561 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 08:03:20,562 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:03:20,562 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:03:20,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2018-11-10 08:03:20,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-10 08:03:20,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:20,563 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:20,563 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 08:03:20,563 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 08:03:20,568 INFO L793 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 5#L18true assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 3#L19-3true [2018-11-10 08:03:20,568 INFO L795 eck$LassoCheckResult]: Loop: 3#L19-3true assume true; 6#L19-1true assume !!(main_~x~0 >= 0);main_~y~0 := 1; 11#L21true assume !(main_~y~0 < main_~x~0); 9#L21-1true main_~x~0 := main_~x~0 - 1; 3#L19-3true [2018-11-10 08:03:20,572 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:20,572 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-10 08:03:20,573 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:20,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:20,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:20,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:20,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1207113, now seen corresponding path program 1 times [2018-11-10 08:03:20,644 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:20,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:20,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:20,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,653 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:20,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969834, now seen corresponding path program 1 times [2018-11-10 08:03:20,653 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:20,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:20,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:20,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:20,711 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:20,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:20,712 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:20,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:20,712 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:03:20,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:20,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:20,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:03:20,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:20,713 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:20,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:20,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:20,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:20,847 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:20,847 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,851 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:20,851 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:20,871 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:20,871 INFO L446 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_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,877 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:20,877 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:20,900 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:20,900 INFO L446 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_b91efdea-de3d-4209-8d86-2a8745ff1cdb/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 [2018-11-10 08:03:20,904 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:20,904 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,924 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:03:20,924 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:20,950 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:03:20,951 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:20,951 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:20,951 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:20,951 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:20,951 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:03:20,951 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:20,951 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:20,951 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:20,951 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:03:20,952 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:20,952 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:20,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:20,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:20,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,018 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:21,021 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:03:21,023 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:21,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:21,024 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:21,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:21,024 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:21,027 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:03:21,027 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:03:21,034 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:21,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:21,035 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:21,035 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:03:21,036 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:21,036 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:21,036 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:21,037 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:03:21,037 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:03:21,042 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:03:21,046 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:03:21,046 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 08:03:21,047 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:03:21,047 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:03:21,048 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:03:21,048 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-10 08:03:21,049 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:03:21,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:21,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:21,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:21,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:21,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:21,107 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:03:21,109 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 4 states. [2018-11-10 08:03:21,146 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 4 states. Result 37 states and 49 transitions. Complement of second has 7 states. [2018-11-10 08:03:21,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:03:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:03:21,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2018-11-10 08:03:21,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-10 08:03:21,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:21,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 08:03:21,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:21,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 3 letters. Loop has 8 letters. [2018-11-10 08:03:21,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:21,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 49 transitions. [2018-11-10 08:03:21,153 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:21,156 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 14 states and 18 transitions. [2018-11-10 08:03:21,156 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 08:03:21,156 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 08:03:21,157 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2018-11-10 08:03:21,157 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:03:21,157 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-10 08:03:21,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2018-11-10 08:03:21,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-10 08:03:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-10 08:03:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2018-11-10 08:03:21,174 INFO L728 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-10 08:03:21,174 INFO L608 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-10 08:03:21,174 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:03:21,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2018-11-10 08:03:21,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:21,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:21,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:21,175 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:03:21,175 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 08:03:21,175 INFO L793 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 98#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 99#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 108#L19-3 assume true; 110#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 100#L21 assume main_~y~0 < main_~x~0; 101#L22-3 [2018-11-10 08:03:21,175 INFO L795 eck$LassoCheckResult]: Loop: 101#L22-3 assume true; 105#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 101#L22-3 [2018-11-10 08:03:21,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:21,175 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-10 08:03:21,175 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:21,175 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:21,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:21,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:21,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1671, now seen corresponding path program 1 times [2018-11-10 08:03:21,182 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:21,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:21,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:21,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:21,186 INFO L82 PathProgramCache]: Analyzing trace with hash 119475216, now seen corresponding path program 1 times [2018-11-10 08:03:21,186 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:21,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:21,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:21,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:21,230 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:21,230 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:21,230 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:21,230 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:21,230 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:03:21,230 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,230 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:21,230 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:21,230 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-10 08:03:21,231 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:21,231 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:21,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,234 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:21,303 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:21,304 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:21,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:21,329 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:21,330 INFO L446 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_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,332 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:21,332 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:21,335 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:21,335 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,351 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:21,351 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:21,353 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:21,353 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,380 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:21,380 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:21,412 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:03:21,412 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:33,451 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 08:03:33,455 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:33,455 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:33,455 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:33,455 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:33,455 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:03:33,455 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:33,456 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:33,456 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:33,456 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration2_Lasso [2018-11-10 08:03:33,456 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:33,456 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:33,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:33,553 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:33,553 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:03:33,554 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:33,555 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:33,555 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:03:33,555 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:33,555 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:33,556 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:33,556 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:03:33,556 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:03:33,557 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:33,558 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:33,558 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:33,559 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:33,559 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:33,559 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:33,562 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:03:33,562 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:03:33,603 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:03:33,631 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-10 08:03:33,631 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-10 08:03:33,632 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:03:33,636 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 08:03:33,637 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:03:33,637 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-10 08:03:33,644 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 08:03:33,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:33,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:33,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:33,706 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-10 08:03:33,706 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-10 08:03:33,730 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states and 18 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 37 states and 46 transitions. Complement of second has 6 states. [2018-11-10 08:03:33,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:03:33,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:03:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-10 08:03:33,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-10 08:03:33,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:33,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-10 08:03:33,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:33,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-10 08:03:33,733 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:33,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2018-11-10 08:03:33,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:33,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 26 states and 32 transitions. [2018-11-10 08:03:33,736 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 08:03:33,736 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-10 08:03:33,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 32 transitions. [2018-11-10 08:03:33,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:03:33,736 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 32 transitions. [2018-11-10 08:03:33,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 32 transitions. [2018-11-10 08:03:33,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 21. [2018-11-10 08:03:33,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 08:03:33,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2018-11-10 08:03:33,738 INFO L728 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-10 08:03:33,739 INFO L608 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-11-10 08:03:33,739 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:03:33,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 26 transitions. [2018-11-10 08:03:33,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:33,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:33,740 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:33,740 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 08:03:33,740 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 08:03:33,740 INFO L793 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 204#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 205#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 214#L19-3 assume true; 215#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 208#L21 assume main_~y~0 < main_~x~0; 210#L22-3 assume true; 212#L22-1 assume !(main_~y~0 < main_~x~0); 213#L21-1 main_~x~0 := main_~x~0 - 1; 221#L19-3 assume true; 218#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 206#L21 assume main_~y~0 < main_~x~0; 207#L22-3 [2018-11-10 08:03:33,740 INFO L795 eck$LassoCheckResult]: Loop: 207#L22-3 assume true; 211#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 207#L22-3 [2018-11-10 08:03:33,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash 160326071, now seen corresponding path program 1 times [2018-11-10 08:03:33,741 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:33,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:33,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:33,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:33,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:33,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 08:03:33,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 08:03:33,777 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:03:33,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:33,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1671, now seen corresponding path program 2 times [2018-11-10 08:03:33,778 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:33,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:33,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:33,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:33,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 08:03:33,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 08:03:33,794 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-10 08:03:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:03:33,806 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2018-11-10 08:03:33,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 08:03:33,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2018-11-10 08:03:33,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:33,808 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 32 transitions. [2018-11-10 08:03:33,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 08:03:33,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-10 08:03:33,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 32 transitions. [2018-11-10 08:03:33,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:03:33,809 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-10 08:03:33,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 32 transitions. [2018-11-10 08:03:33,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-11-10 08:03:33,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-10 08:03:33,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-11-10 08:03:33,811 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-10 08:03:33,811 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-10 08:03:33,811 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 08:03:33,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2018-11-10 08:03:33,814 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:33,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:33,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:33,815 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-10 08:03:33,815 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 08:03:33,815 INFO L793 eck$LassoCheckResult]: Stem: 269#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 259#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 260#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 270#L19-3 assume true; 271#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 266#L21 assume main_~y~0 < main_~x~0; 268#L22-3 assume true; 263#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 264#L22-3 assume true; 279#L22-1 assume !(main_~y~0 < main_~x~0); 277#L21-1 main_~x~0 := main_~x~0 - 1; 276#L19-3 assume true; 273#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 265#L21 assume main_~y~0 < main_~x~0; 262#L22-3 [2018-11-10 08:03:33,815 INFO L795 eck$LassoCheckResult]: Loop: 262#L22-3 assume true; 261#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 262#L22-3 [2018-11-10 08:03:33,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:33,816 INFO L82 PathProgramCache]: Analyzing trace with hash 873647485, now seen corresponding path program 1 times [2018-11-10 08:03:33,816 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:33,816 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:33,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,817 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:03:33,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:33,854 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 08:03:33,854 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 08:03:33,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:33,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:33,923 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 08:03:33,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-10 08:03:33,924 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-11-10 08:03:33,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:33,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1671, now seen corresponding path program 3 times [2018-11-10 08:03:33,924 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:33,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:33,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:03:33,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:33,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 08:03:33,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-10 08:03:33,934 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. cyclomatic complexity: 9 Second operand 8 states. [2018-11-10 08:03:34,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 08:03:34,004 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2018-11-10 08:03:34,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-10 08:03:34,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 62 transitions. [2018-11-10 08:03:34,005 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:34,006 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 31 states and 34 transitions. [2018-11-10 08:03:34,006 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-10 08:03:34,006 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-10 08:03:34,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 34 transitions. [2018-11-10 08:03:34,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:03:34,006 INFO L705 BuchiCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-11-10 08:03:34,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 34 transitions. [2018-11-10 08:03:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2018-11-10 08:03:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 08:03:34,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2018-11-10 08:03:34,008 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-10 08:03:34,008 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 29 transitions. [2018-11-10 08:03:34,008 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 08:03:34,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 29 transitions. [2018-11-10 08:03:34,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 08:03:34,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:03:34,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:03:34,009 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2018-11-10 08:03:34,009 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 08:03:34,010 INFO L793 eck$LassoCheckResult]: Stem: 406#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 397#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~n~0;havoc main_~x~0;havoc main_~y~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~x~0 := main_~n~0; 398#L18 assume main_~x~0 >= 0 && main_~x~0 <= 1073741823; 407#L19-3 assume true; 408#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 422#L21 assume main_~y~0 < main_~x~0; 421#L22-3 assume true; 401#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 402#L22-3 assume true; 412#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 418#L22-3 assume true; 414#L22-1 assume !(main_~y~0 < main_~x~0); 413#L21-1 main_~x~0 := main_~x~0 - 1; 409#L19-3 assume true; 410#L19-1 assume !!(main_~x~0 >= 0);main_~y~0 := 1; 403#L21 assume main_~y~0 < main_~x~0; 400#L22-3 [2018-11-10 08:03:34,010 INFO L795 eck$LassoCheckResult]: Loop: 400#L22-3 assume true; 399#L22-1 assume !!(main_~y~0 < main_~x~0);main_~y~0 := 2 * main_~y~0; 400#L22-3 [2018-11-10 08:03:34,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,010 INFO L82 PathProgramCache]: Analyzing trace with hash -819241021, now seen corresponding path program 2 times [2018-11-10 08:03:34,010 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:34,010 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:34,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,011 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:03:34,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1671, now seen corresponding path program 4 times [2018-11-10 08:03:34,018 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:34,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:34,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,019 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:03:34,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1311605303, now seen corresponding path program 3 times [2018-11-10 08:03:34,023 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:03:34,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:03:34,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,024 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:03:34,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:03:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:03:34,090 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:34,090 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:34,090 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:34,090 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:34,090 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:03:34,090 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,090 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:34,090 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:34,090 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-10 08:03:34,090 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:34,091 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:34,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,142 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:34,142 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,144 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:34,144 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:34,146 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:34,147 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,164 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:34,164 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:34,166 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:34,166 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,182 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:34,182 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:34,184 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:34,184 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,201 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:34,201 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:34,217 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:03:34,217 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:03:34,220 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b91efdea-de3d-4209-8d86-2a8745ff1cdb/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:03:34,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:03:34,342 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:03:34,343 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:03:34,343 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:03:34,343 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:03:34,343 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:03:34,343 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:03:34,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:03:34,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:03:34,344 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:03:34,344 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-loops_true-termination_true-no-overflow.c_Iteration5_Lasso [2018-11-10 08:03:34,344 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:03:34,344 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:03:34,345 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:03:34,399 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:03:34,399 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:03:34,399 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:34,400 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:34,400 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:03:34,400 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:34,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:34,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:34,401 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:03:34,401 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:03:34,401 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:34,402 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:34,402 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:34,402 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:03:34,402 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:34,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:34,403 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:34,403 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:03:34,403 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:03:34,404 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:34,404 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:34,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:34,404 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:03:34,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:34,405 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:34,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:34,405 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:03:34,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:03:34,406 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:34,406 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:34,406 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:34,406 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:34,406 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:34,407 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:34,408 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:03:34,408 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:03:34,410 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:03:34,410 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:03:34,410 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:03:34,410 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:03:34,411 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:03:34,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:03:34,414 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:03:34,414 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:03:34,430 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:03:34,439 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-10 08:03:34,440 INFO L444 ModelExtractionUtils]: 4 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 08:03:34,440 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:03:34,441 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 08:03:34,441 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:03:34,441 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~y~0 - 1 >= 0] [2018-11-10 08:03:34,459 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 08:03:34,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,491 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:34,491 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-10 08:03:34,491 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-10 08:03:34,513 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 37 states and 42 transitions. Complement of second has 6 states. [2018-11-10 08:03:34,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:03:34,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:03:34,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-10 08:03:34,516 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-10 08:03:34,516 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:34,516 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:03:34,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:34,543 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-10 08:03:34,543 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-10 08:03:34,559 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 37 states and 42 transitions. Complement of second has 6 states. [2018-11-10 08:03:34,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:03:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:03:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-10 08:03:34,560 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-10 08:03:34,560 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:34,560 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:03:34,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:03:34,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,577 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:03:34,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:03:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:03:34,582 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-11-10 08:03:34,582 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-10 08:03:34,616 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 29 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 38 states and 44 transitions. Complement of second has 5 states. [2018-11-10 08:03:34,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 08:03:34,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:03:34,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-10 08:03:34,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 2 letters. [2018-11-10 08:03:34,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:34,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 18 letters. Loop has 2 letters. [2018-11-10 08:03:34,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:34,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 16 letters. Loop has 4 letters. [2018-11-10 08:03:34,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:03:34,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 44 transitions. [2018-11-10 08:03:34,619 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:03:34,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:03:34,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:03:34,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:03:34,620 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 08:03:34,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:03:34,620 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:03:34,620 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:03:34,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:03:34 BoogieIcfgContainer [2018-11-10 08:03:34,625 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:03:34,625 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:03:34,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:03:34,625 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:03:34,626 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:03:20" (3/4) ... [2018-11-10 08:03:34,628 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:03:34,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:03:34,629 INFO L168 Benchmark]: Toolchain (without parser) took 14538.69 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 238.0 MB). Free memory was 954.8 MB in the beginning and 1.2 GB in the end (delta: -265.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:03:34,630 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:03:34,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:03:34,630 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.77 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:03:34,630 INFO L168 Benchmark]: Boogie Preprocessor took 15.38 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:03:34,631 INFO L168 Benchmark]: RCFGBuilder took 201.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -228.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 08:03:34,631 INFO L168 Benchmark]: BuchiAutomizer took 14156.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.7 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -51.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-10 08:03:34,632 INFO L168 Benchmark]: Witness Printer took 3.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:03:34,634 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 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.64 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 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 25.77 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.38 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 201.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 180.4 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -228.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14156.46 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.7 MB). Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: -51.1 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 5 locations. One deterministic module has affine ranking function -1 * y + x and consists of 4 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.1s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 13.5s. 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 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 26 states and ocurred in iteration 4. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 65 SDtfs, 74 SDslu, 48 SDs, 0 SdLazy, 96 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN2 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax158 hnf98 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq164 hnf92 smp100 dnf100 smp100 tf102 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...