./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-numeric/rec_counter1_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_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/rec_counter1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 82bd2b65619821bf052931b3532da39241349d4f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-09 23:50:59,366 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-09 23:50:59,368 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-09 23:50:59,376 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-09 23:50:59,376 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-09 23:50:59,377 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-09 23:50:59,378 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-09 23:50:59,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-09 23:50:59,380 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-09 23:50:59,380 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-09 23:50:59,381 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-09 23:50:59,381 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-09 23:50:59,382 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-09 23:50:59,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-09 23:50:59,383 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-09 23:50:59,384 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-09 23:50:59,384 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-09 23:50:59,385 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-09 23:50:59,386 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-09 23:50:59,387 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-09 23:50:59,388 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-09 23:50:59,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-09 23:50:59,390 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-09 23:50:59,390 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-09 23:50:59,391 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-09 23:50:59,391 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-09 23:50:59,392 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-09 23:50:59,392 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-09 23:50:59,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-09 23:50:59,394 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-09 23:50:59,394 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-09 23:50:59,394 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-09 23:50:59,394 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-09 23:50:59,394 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-09 23:50:59,395 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-09 23:50:59,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-09 23:50:59,396 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-09 23:50:59,406 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-09 23:50:59,406 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-09 23:50:59,407 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-09 23:50:59,407 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-09 23:50:59,407 INFO L133 SettingsManager]: * Use SBE=true [2018-11-09 23:50:59,407 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-09 23:50:59,407 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-09 23:50:59,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-09 23:50:59,408 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-09 23:50:59,409 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-09 23:50:59,409 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-09 23:50:59,410 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-09 23:50:59,410 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-09 23:50:59,410 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-09 23:50:59,410 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-09 23:50:59,411 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-09 23:50:59,411 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_1420863b-8f97-4e0a-8637-e2064ebeba87/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 -> 82bd2b65619821bf052931b3532da39241349d4f [2018-11-09 23:50:59,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-09 23:50:59,441 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-09 23:50:59,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-09 23:50:59,445 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-09 23:50:59,445 INFO L276 PluginConnector]: CDTParser initialized [2018-11-09 23:50:59,446 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/../../sv-benchmarks/c/termination-numeric/rec_counter1_true-termination_true-no-overflow.c [2018-11-09 23:50:59,490 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/data/3b6a89c6c/61d17b8b830f45eba26e0863012ecfe7/FLAG807d33d2c [2018-11-09 23:50:59,816 INFO L298 CDTParser]: Found 1 translation units. [2018-11-09 23:50:59,816 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/sv-benchmarks/c/termination-numeric/rec_counter1_true-termination_true-no-overflow.c [2018-11-09 23:50:59,820 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/data/3b6a89c6c/61d17b8b830f45eba26e0863012ecfe7/FLAG807d33d2c [2018-11-09 23:50:59,829 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/data/3b6a89c6c/61d17b8b830f45eba26e0863012ecfe7 [2018-11-09 23:50:59,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-09 23:50:59,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-09 23:50:59,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-09 23:50:59,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-09 23:50:59,835 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-09 23:50:59,835 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:50:59,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d995a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59, skipping insertion in model container [2018-11-09 23:50:59,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:50:59,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-09 23:50:59,857 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-09 23:50:59,961 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:50:59,964 INFO L189 MainTranslator]: Completed pre-run [2018-11-09 23:50:59,972 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-09 23:50:59,981 INFO L193 MainTranslator]: Completed translation [2018-11-09 23:50:59,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59 WrapperNode [2018-11-09 23:50:59,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-09 23:50:59,982 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-09 23:50:59,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-09 23:50:59,982 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-09 23:50:59,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:50:59,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,000 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-09 23:51:00,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-09 23:51:00,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-09 23:51:00,001 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-09 23:51:00,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,007 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... [2018-11-09 23:51:00,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-09 23:51:00,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-09 23:51:00,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-09 23:51:00,011 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-09 23:51:00,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2018-11-09 23:51:00,085 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2018-11-09 23:51:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-09 23:51:00,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-09 23:51:00,172 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-09 23:51:00,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:00 BoogieIcfgContainer [2018-11-09 23:51:00,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-09 23:51:00,173 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-09 23:51:00,173 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-09 23:51:00,175 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-09 23:51:00,175 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:51:00,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 11:50:59" (1/3) ... [2018-11-09 23:51:00,176 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@499831b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:51:00, skipping insertion in model container [2018-11-09 23:51:00,176 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:51:00,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:50:59" (2/3) ... [2018-11-09 23:51:00,176 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@499831b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 11:51:00, skipping insertion in model container [2018-11-09 23:51:00,176 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-09 23:51:00,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:00" (3/3) ... [2018-11-09 23:51:00,178 INFO L375 chiAutomizerObserver]: Analyzing ICFG rec_counter1_true-termination_true-no-overflow.c [2018-11-09 23:51:00,214 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-09 23:51:00,215 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-09 23:51:00,215 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-09 23:51:00,215 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-09 23:51:00,215 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-09 23:51:00,215 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-09 23:51:00,215 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-09 23:51:00,215 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-09 23:51:00,216 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-09 23:51:00,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-09 23:51:00,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-09 23:51:00,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:51:00,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:51:00,249 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-09 23:51:00,249 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-09 23:51:00,249 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-09 23:51:00,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2018-11-09 23:51:00,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-09 23:51:00,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:51:00,250 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:51:00,251 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-09 23:51:00,251 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-09 23:51:00,255 INFO L793 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L18true assume !(main_~i~0 <= 0); 9#L20true call main_#t~ret3 := rec(main_~i~0);< 3#recENTRYtrue [2018-11-09 23:51:00,255 INFO L795 eck$LassoCheckResult]: Loop: 3#recENTRYtrue ~a := #in~a; 8#L5true assume !(~a == 0); 13#L8true call #t~ret0 := rec(~a - 1);< 3#recENTRYtrue [2018-11-09 23:51:00,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:00,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1602923, now seen corresponding path program 1 times [2018-11-09 23:51:00,260 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:00,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:00,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:00,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:00,318 INFO L82 PathProgramCache]: Analyzing trace with hash 29950, now seen corresponding path program 1 times [2018-11-09 23:51:00,318 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:00,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:00,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:00,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:00,326 INFO L82 PathProgramCache]: Analyzing trace with hash 508038996, now seen corresponding path program 1 times [2018-11-09 23:51:00,326 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:00,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:00,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:00,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:00,403 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:00,404 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:00,404 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:00,404 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:00,404 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:51:00,404 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:00,404 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:00,404 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:00,404 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-09 23:51:00,405 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:00,405 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:00,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,555 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:00,556 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,559 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,565 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,565 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,581 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,584 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,584 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,600 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,600 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,602 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,602 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,619 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,621 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,621 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,637 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,639 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,639 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,654 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,655 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:51:00,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,682 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,682 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#in~a=-8} Honda state: {rec_#in~a=-8} Generalized eigenvectors: [{rec_#in~a=-1}, {rec_#in~a=0}, {rec_#in~a=0}] Lambdas: [1, 7, 2] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,697 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,697 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,700 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,700 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-09 23:51:00,725 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:00,725 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:00,725 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:00,725 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:00,725 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:51:00,726 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:00,726 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:00,726 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:00,726 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-09 23:51:00,726 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:00,726 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:00,727 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:00,821 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:00,821 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,831 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,831 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,839 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,839 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_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:00,856 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,856 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,858 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,858 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~ret0=0} Honda state: {rec_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,879 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,880 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,881 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,882 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#t~post1=0} Honda state: {rec_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,898 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,899 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,903 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,903 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,919 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,920 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,921 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,922 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~ret3=0} Honda state: {ULTIMATE.start_main_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,938 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,940 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,940 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_#res=0} Honda state: {rec_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,965 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,965 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,967 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,967 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~a=0} Honda state: {rec_~a=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/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 [2018-11-09 23:51:00,984 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:00,984 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:00,986 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:00,986 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,003 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,003 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,005 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:01,005 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~rescopy~0=0} Honda state: {rec_~rescopy~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,030 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,033 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:01,033 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {rec_~res~0=0} Honda state: {rec_~res~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,059 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,061 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:01,061 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_#t~ret4=0} Honda state: {ULTIMATE.start_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,077 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,077 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,080 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-09 23:51:01,080 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~1=0} Honda state: {ULTIMATE.start_main_~res~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,097 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:51:01,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,139 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 23:51:01,140 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:01,140 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:01,140 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:01,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:01,140 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 23:51:01,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,140 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:01,140 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:01,140 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-09 23:51:01,141 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:01,141 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:01,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,147 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,154 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,213 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:01,217 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 23:51:01,218 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 [2018-11-09 23:51:01,220 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,220 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,220 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,220 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,221 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,222 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,222 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,225 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,226 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 [2018-11-09 23:51:01,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,227 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,228 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,228 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,228 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,228 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,229 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,230 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 [2018-11-09 23:51:01,230 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,231 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,231 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,231 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,231 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,231 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,232 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,232 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,233 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 [2018-11-09 23:51:01,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,233 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,234 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,234 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,236 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,236 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 [2018-11-09 23:51:01,236 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,237 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,237 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,237 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,237 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,237 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,237 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,238 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,239 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 [2018-11-09 23:51:01,239 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,239 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,239 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,239 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,240 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,241 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,242 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-09 23:51:01,242 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,242 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,242 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,242 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,243 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,243 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,243 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,244 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,245 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 [2018-11-09 23:51:01,245 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,245 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,245 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,245 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,246 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,246 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,246 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,247 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,247 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 [2018-11-09 23:51:01,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,248 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,249 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,249 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,251 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,252 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-09 23:51:01,252 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,252 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,252 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,253 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,253 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,253 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,253 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,254 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,254 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 [2018-11-09 23:51:01,255 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,255 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,255 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,255 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,255 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,256 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,257 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,258 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 [2018-11-09 23:51:01,258 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,258 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,258 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-09 23:51:01,259 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,264 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-11-09 23:51:01,264 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-09 23:51:01,329 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 23:51:01,349 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-09 23:51:01,349 INFO L444 ModelExtractionUtils]: 6 out of 11 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-09 23:51:01,351 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 23:51:01,354 INFO L440 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2018-11-09 23:51:01,355 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 23:51:01,355 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_#in~a) = 1*rec_#in~a Supporting invariants [1*rec_#in~a >= 0] [2018-11-09 23:51:01,368 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-09 23:51:01,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:01,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:01,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:01,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:51:01,496 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-09 23:51:01,497 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 5 states. [2018-11-09 23:51:01,603 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 5 states. Result 35 states and 41 transitions. Complement of second has 13 states. [2018-11-09 23:51:01,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-09 23:51:01,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-09 23:51:01,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-11-09 23:51:01,606 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-09 23:51:01,606 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-09 23:51:01,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-09 23:51:01,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,608 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2018-11-09 23:51:01,610 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:51:01,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 19 states and 24 transitions. [2018-11-09 23:51:01,615 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-09 23:51:01,615 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-09 23:51:01,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 24 transitions. [2018-11-09 23:51:01,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-09 23:51:01,617 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2018-11-09 23:51:01,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 24 transitions. [2018-11-09 23:51:01,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-11-09 23:51:01,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-09 23:51:01,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-09 23:51:01,636 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-09 23:51:01,636 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-09 23:51:01,636 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-09 23:51:01,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-09 23:51:01,636 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:51:01,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:51:01,636 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:51:01,637 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:51:01,637 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-09 23:51:01,638 INFO L793 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 129#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 126#L18 assume !(main_~i~0 <= 0); 121#L20 call main_#t~ret3 := rec(main_~i~0);< 120#recENTRY ~a := #in~a; 122#L5 assume !(~a == 0); 124#L8 call #t~ret0 := rec(~a - 1);< 123#recENTRY ~a := #in~a; 125#L5 assume ~a == 0;#res := 0; 128#recFINAL assume true; 134#recEXIT >#36#return; 133#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 131#L10-3 [2018-11-09 23:51:01,638 INFO L795 eck$LassoCheckResult]: Loop: 131#L10-3 assume true; 130#L10-1 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 131#L10-3 [2018-11-09 23:51:01,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1228794496, now seen corresponding path program 1 times [2018-11-09 23:51:01,638 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:01,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1287, now seen corresponding path program 1 times [2018-11-09 23:51:01,646 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:01,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,648 INFO L82 PathProgramCache]: Analyzing trace with hash 244496070, now seen corresponding path program 1 times [2018-11-09 23:51:01,649 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:01,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-09 23:51:01,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-09 23:51:01,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-09 23:51:01,697 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:01,698 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:01,698 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:01,698 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:01,698 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:51:01,698 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,698 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:01,698 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:01,698 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-09 23:51:01,698 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:01,698 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:01,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,721 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:01,721 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,727 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,727 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,745 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:51:01,745 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:01,762 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 23:51:01,763 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:01,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:01,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:01,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:01,764 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 23:51:01,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,764 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:01,764 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:01,764 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-09 23:51:01,764 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:01,764 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:01,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,790 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:01,790 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 23:51:01,791 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 [2018-11-09 23:51:01,791 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,791 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,791 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,791 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,791 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,791 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,792 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,792 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-09 23:51:01,792 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 [2018-11-09 23:51:01,792 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:01,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:01,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:01,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:01,793 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:01,793 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:01,793 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:01,795 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 23:51:01,796 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-09 23:51:01,796 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 23:51:01,796 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 23:51:01,796 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 23:51:01,797 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 23:51:01,797 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2018-11-09 23:51:01,797 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 23:51:01,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:01,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:01,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:51:01,849 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 [2018-11-09 23:51:01,849 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-09 23:51:01,881 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 53 states and 70 transitions. Complement of second has 12 states. [2018-11-09 23:51:01,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-09 23:51:01,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 23:51:01,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2018-11-09 23:51:01,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-09 23:51:01,883 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,883 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-11-09 23:51:01,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,884 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 12 letters. Loop has 4 letters. [2018-11-09 23:51:01,884 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:01,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 70 transitions. [2018-11-09 23:51:01,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:51:01,887 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 27 states and 34 transitions. [2018-11-09 23:51:01,887 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2018-11-09 23:51:01,887 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2018-11-09 23:51:01,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 34 transitions. [2018-11-09 23:51:01,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-09 23:51:01,888 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-11-09 23:51:01,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 34 transitions. [2018-11-09 23:51:01,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2018-11-09 23:51:01,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-09 23:51:01,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2018-11-09 23:51:01,890 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2018-11-09 23:51:01,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-09 23:51:01,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-09 23:51:01,892 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand 5 states. [2018-11-09 23:51:01,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-09 23:51:01,903 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2018-11-09 23:51:01,904 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-09 23:51:01,904 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2018-11-09 23:51:01,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:51:01,906 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 22 states and 25 transitions. [2018-11-09 23:51:01,906 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-09 23:51:01,906 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-09 23:51:01,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 25 transitions. [2018-11-09 23:51:01,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-09 23:51:01,906 INFO L705 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-09 23:51:01,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 25 transitions. [2018-11-09 23:51:01,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-09 23:51:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-09 23:51:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2018-11-09 23:51:01,908 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-09 23:51:01,908 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2018-11-09 23:51:01,908 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-09 23:51:01,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2018-11-09 23:51:01,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-09 23:51:01,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-09 23:51:01,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-09 23:51:01,909 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-09 23:51:01,909 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-09 23:51:01,910 INFO L793 eck$LassoCheckResult]: Stem: 324#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 322#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet2, main_#t~ret3, main_~i~0, main_~res~1;main_~i~0 := main_#t~nondet2;havoc main_#t~nondet2; 318#L18 assume !(main_~i~0 <= 0); 311#L20 call main_#t~ret3 := rec(main_~i~0);< 310#recENTRY ~a := #in~a; 312#L5 assume !(~a == 0); 314#L8 call #t~ret0 := rec(~a - 1);< 313#recENTRY ~a := #in~a; 316#L5 assume !(~a == 0); 315#L8 call #t~ret0 := rec(~a - 1);< 313#recENTRY ~a := #in~a; 317#L5 assume ~a == 0;#res := 0; 321#recFINAL assume true; 331#recEXIT >#36#return; 330#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 329#L10-3 assume true; 323#L10-1 assume !(~rescopy~0 > 0); 319#L10-4 #res := 1 + ~res~0; 320#recFINAL assume true; 328#recEXIT >#36#return; 325#L8-1 ~res~0 := #t~ret0;havoc #t~ret0;~rescopy~0 := ~res~0; 326#L10-3 [2018-11-09 23:51:01,910 INFO L795 eck$LassoCheckResult]: Loop: 326#L10-3 assume true; 327#L10-1 assume !!(~rescopy~0 > 0);#t~post1 := ~rescopy~0;~rescopy~0 := #t~post1 - 1;havoc #t~post1; 326#L10-3 [2018-11-09 23:51:01,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1874940528, now seen corresponding path program 1 times [2018-11-09 23:51:01,910 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:01,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1287, now seen corresponding path program 2 times [2018-11-09 23:51:01,921 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-09 23:51:01,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:01,925 INFO L82 PathProgramCache]: Analyzing trace with hash 2068417238, now seen corresponding path program 1 times [2018-11-09 23:51:01,925 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-09 23:51:01,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-09 23:51:01,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,926 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-09 23:51:01,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-09 23:51:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-09 23:51:01,956 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:01,956 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:01,956 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:01,956 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:01,956 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-09 23:51:01,956 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,957 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:01,957 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:01,957 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-09 23:51:01,957 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:01,957 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:01,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:01,994 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:01,994 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:01,999 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-09 23:51:01,999 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1420863b-8f97-4e0a-8637-e2064ebeba87/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:02,019 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-09 23:51:02,019 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-09 23:51:02,037 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-09 23:51:02,038 INFO L214 LassoAnalysis]: Preferences: [2018-11-09 23:51:02,038 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-09 23:51:02,038 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-09 23:51:02,039 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-09 23:51:02,039 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-09 23:51:02,039 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-09 23:51:02,039 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-09 23:51:02,039 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-09 23:51:02,039 INFO L131 ssoRankerPreferences]: Filename of dumped script: rec_counter1_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-09 23:51:02,039 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-09 23:51:02,039 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-09 23:51:02,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:02,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-09 23:51:02,052 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-09 23:51:02,052 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-09 23:51:02,052 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 [2018-11-09 23:51:02,053 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-09 23:51:02,053 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-09 23:51:02,053 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-09 23:51:02,053 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-09 23:51:02,053 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-09 23:51:02,053 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-09 23:51:02,053 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-09 23:51:02,055 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-09 23:51:02,055 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-09 23:51:02,056 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-09 23:51:02,056 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-09 23:51:02,056 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-09 23:51:02,056 INFO L517 LassoAnalysis]: Proved termination. [2018-11-09 23:51:02,056 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(rec_~rescopy~0) = 1*rec_~rescopy~0 Supporting invariants [] [2018-11-09 23:51:02,056 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-09 23:51:02,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,106 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:51:02,107 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 [2018-11-09 23:51:02,107 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-09 23:51:02,134 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 29 states and 33 transitions. Complement of second has 7 states. [2018-11-09 23:51:02,134 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 [2018-11-09 23:51:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 23:51:02,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-09 23:51:02,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 21 letters. Loop has 2 letters. [2018-11-09 23:51:02,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:02,135 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-09 23:51:02,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:02,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,186 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:51:02,187 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 [2018-11-09 23:51:02,187 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-09 23:51:02,230 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 29 states and 33 transitions. Complement of second has 7 states. [2018-11-09 23:51:02,230 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 [2018-11-09 23:51:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 23:51:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-09 23:51:02,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 21 letters. Loop has 2 letters. [2018-11-09 23:51:02,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:02,231 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-09 23:51:02,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-09 23:51:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-09 23:51:02,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-09 23:51:02,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-09 23:51:02,264 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 [2018-11-09 23:51:02,264 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-09 23:51:02,283 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 39 states and 45 transitions. Complement of second has 9 states. [2018-11-09 23:51:02,283 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 [2018-11-09 23:51:02,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-09 23:51:02,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2018-11-09 23:51:02,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 21 letters. Loop has 2 letters. [2018-11-09 23:51:02,284 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:02,284 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 23 letters. Loop has 2 letters. [2018-11-09 23:51:02,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:02,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 21 letters. Loop has 4 letters. [2018-11-09 23:51:02,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-09 23:51:02,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 45 transitions. [2018-11-09 23:51:02,286 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 23:51:02,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2018-11-09 23:51:02,286 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-09 23:51:02,286 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-09 23:51:02,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-09 23:51:02,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-09 23:51:02,287 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:51:02,287 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:51:02,287 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-09 23:51:02,287 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-09 23:51:02,287 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-09 23:51:02,287 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-09 23:51:02,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-09 23:51:02,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 11:51:02 BoogieIcfgContainer [2018-11-09 23:51:02,291 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-09 23:51:02,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-09 23:51:02,291 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-09 23:51:02,291 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-09 23:51:02,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:51:00" (3/4) ... [2018-11-09 23:51:02,293 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-09 23:51:02,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-09 23:51:02,294 INFO L168 Benchmark]: Toolchain (without parser) took 2462.53 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 960.3 MB in the beginning and 1.2 GB in the end (delta: -231.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:51:02,295 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:51:02,295 INFO L168 Benchmark]: CACSL2BoogieTranslator took 149.06 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-09 23:51:02,296 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-09 23:51:02,296 INFO L168 Benchmark]: Boogie Preprocessor took 10.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:51:02,296 INFO L168 Benchmark]: RCFGBuilder took 161.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-09 23:51:02,296 INFO L168 Benchmark]: BuchiAutomizer took 2118.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2018-11-09 23:51:02,297 INFO L168 Benchmark]: Witness Printer took 2.41 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. [2018-11-09 23:51:02,298 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 149.06 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 948.4 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 161.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2118.45 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 81.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -58.0 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Witness Printer took 2.41 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 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function \old(a) and consists of 5 locations. One deterministic module has affine ranking function rescopy and consists of 5 locations. One nondeterministic module has affine ranking function rescopy and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 84 SDtfs, 89 SDslu, 64 SDs, 0 SdLazy, 47 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf94 smp100 dnf124 smp100 tf108 neg97 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 97ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...