./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/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 32bit --witnessprinter.graph.data.programhash b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:50:09,386 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:50:09,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:50:09,395 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:50:09,395 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:50:09,396 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:50:09,397 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:50:09,398 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:50:09,399 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:50:09,399 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:50:09,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:50:09,400 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:50:09,401 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:50:09,402 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:50:09,402 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:50:09,403 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:50:09,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:50:09,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:50:09,406 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:50:09,407 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:50:09,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:50:09,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:50:09,410 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:50:09,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:50:09,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:50:09,411 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:50:09,412 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:50:09,413 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:50:09,413 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:50:09,414 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:50:09,414 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:50:09,414 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:50:09,414 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:50:09,415 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:50:09,415 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:50:09,416 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:50:09,416 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 15:50:09,427 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:50:09,427 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:50:09,428 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:50:09,428 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:50:09,428 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:50:09,428 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 15:50:09,429 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:50:09,429 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 15:50:09,430 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 15:50:09,431 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:50:09,431 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:50:09,432 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 15:50:09,432 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:50:09,432 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:50:09,432 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 15:50:09,433 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 15:50:09,433 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_a6875549-d954-4f16-8bda-a5075295ad89/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3a658a1fe592322f5aa7f1391ad7ef7d0545b11 [2018-11-18 15:50:09,454 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:50:09,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:50:09,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:50:09,467 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:50:09,467 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:50:09,468 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-18 15:50:09,512 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/data/46c08324d/56585ce048ba4d51bf2bbd92e341e2af/FLAGaeb148f51 [2018-11-18 15:50:09,920 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:50:09,920 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-11-18 15:50:09,924 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/data/46c08324d/56585ce048ba4d51bf2bbd92e341e2af/FLAGaeb148f51 [2018-11-18 15:50:09,934 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/data/46c08324d/56585ce048ba4d51bf2bbd92e341e2af [2018-11-18 15:50:09,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:50:09,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:50:09,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:50:09,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:50:09,939 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:50:09,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:50:09" (1/1) ... [2018-11-18 15:50:09,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:09, skipping insertion in model container [2018-11-18 15:50:09,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:50:09" (1/1) ... [2018-11-18 15:50:09,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:50:09,961 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:50:10,068 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:50:10,071 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:50:10,081 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:50:10,089 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:50:10,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10 WrapperNode [2018-11-18 15:50:10,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:50:10,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:50:10,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:50:10,090 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:50:10,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:50:10,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:50:10,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:50:10,111 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:50:10,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... [2018-11-18 15:50:10,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:50:10,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:50:10,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:50:10,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:50:10,124 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:50:10,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:50:10,312 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:50:10,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:10 BoogieIcfgContainer [2018-11-18 15:50:10,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:50:10,313 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 15:50:10,313 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 15:50:10,315 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 15:50:10,316 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:50:10,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 03:50:09" (1/3) ... [2018-11-18 15:50:10,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74a77b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:50:10, skipping insertion in model container [2018-11-18 15:50:10,317 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:50:10,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:10" (2/3) ... [2018-11-18 15:50:10,317 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@74a77b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:50:10, skipping insertion in model container [2018-11-18 15:50:10,317 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:50:10,317 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:10" (3/3) ... [2018-11-18 15:50:10,318 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-18 15:50:10,354 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:50:10,354 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 15:50:10,354 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 15:50:10,354 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 15:50:10,354 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:50:10,354 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:50:10,355 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 15:50:10,355 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:50:10,355 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 15:50:10,363 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-11-18 15:50:10,377 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-18 15:50:10,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:10,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:10,382 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 15:50:10,382 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 15:50:10,382 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 15:50:10,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states. [2018-11-18 15:50:10,384 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 12 [2018-11-18 15:50:10,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:10,384 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:10,384 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 15:50:10,384 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 15:50:10,389 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 14#L32true assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 18#L12true assume !!(f_~k~0 <= 1073741823); 31#L15-2true [2018-11-18 15:50:10,389 INFO L796 eck$LassoCheckResult]: Loop: 31#L15-2true assume true; 22#L15true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 31#L15-2true [2018-11-18 15:50:10,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:10,393 INFO L82 PathProgramCache]: Analyzing trace with hash 925608, now seen corresponding path program 1 times [2018-11-18 15:50:10,394 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:10,394 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:10,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:10,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:10,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2018-11-18 15:50:10,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:10,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:10,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:10,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:10,458 INFO L82 PathProgramCache]: Analyzing trace with hash 889509742, now seen corresponding path program 1 times [2018-11-18 15:50:10,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:10,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:10,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:10,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:10,527 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:10,528 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:10,528 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:10,528 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:10,528 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:10,528 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,528 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:10,529 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:10,529 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-18 15:50:10,529 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:10,529 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:10,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,590 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,592 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,600 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:10,712 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:10,713 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,719 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:10,719 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:10,724 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:10,724 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:10,742 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:10,746 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:10,746 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,763 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:10,763 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:10,782 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:10,782 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:24,798 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-18 15:50:24,804 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:24,804 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:24,805 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:24,805 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:24,805 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:24,805 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:24,805 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:24,805 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:24,805 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-18 15:50:24,806 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:24,806 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:24,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,813 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:24,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:24,928 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:24,929 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:24,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:24,930 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:24,931 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:24,931 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:24,931 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:24,932 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:24,932 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:24,935 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:24,935 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:24,935 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:24,936 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:24,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:24,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:24,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:24,936 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:24,936 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:24,937 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:24,937 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:24,938 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:24,938 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:24,938 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:24,938 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:24,938 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:24,938 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:24,938 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:24,939 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:24,939 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:24,940 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:24,940 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:24,940 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:24,940 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:24,940 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:24,941 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:24,941 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:24,942 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:24,942 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:24,942 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:24,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:24,943 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:24,943 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:24,946 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:24,946 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:24,989 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:25,013 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-18 15:50:25,013 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 15:50:25,015 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:25,017 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:25,018 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:25,018 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-18 15:50:25,021 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:25,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:25,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:25,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:25,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:25,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:25,102 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 [2018-11-18 15:50:25,103 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states. Second operand 4 states. [2018-11-18 15:50:25,206 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states.. Second operand 4 states. Result 93 states and 120 transitions. Complement of second has 7 states. [2018-11-18 15:50:25,206 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 [2018-11-18 15:50:25,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 15:50:25,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 88 transitions. [2018-11-18 15:50:25,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 15:50:25,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:25,210 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 15:50:25,210 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:25,211 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 88 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 15:50:25,211 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:25,211 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 120 transitions. [2018-11-18 15:50:25,215 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 16 [2018-11-18 15:50:25,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 33 states and 41 transitions. [2018-11-18 15:50:25,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-18 15:50:25,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-11-18 15:50:25,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 41 transitions. [2018-11-18 15:50:25,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:25,219 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 41 transitions. [2018-11-18 15:50:25,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 41 transitions. [2018-11-18 15:50:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 25. [2018-11-18 15:50:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 15:50:25,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2018-11-18 15:50:25,237 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-11-18 15:50:25,237 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-11-18 15:50:25,237 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 15:50:25,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2018-11-18 15:50:25,238 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 10 [2018-11-18 15:50:25,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:25,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:25,238 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 15:50:25,238 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 15:50:25,238 INFO L794 eck$LassoCheckResult]: Stem: 196#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 194#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 195#L32 assume !(0 != main_~c~1 % 256);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 198#L12-1 assume !!(f_~k~0 <= 1073741823); 191#L15-6 [2018-11-18 15:50:25,238 INFO L796 eck$LassoCheckResult]: Loop: 191#L15-6 assume true; 192#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 191#L15-6 [2018-11-18 15:50:25,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:25,238 INFO L82 PathProgramCache]: Analyzing trace with hash 927304, now seen corresponding path program 1 times [2018-11-18 15:50:25,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:25,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:25,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:25,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash 3111, now seen corresponding path program 1 times [2018-11-18 15:50:25,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:25,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:25,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:25,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:25,250 INFO L82 PathProgramCache]: Analyzing trace with hash 891141294, now seen corresponding path program 1 times [2018-11-18 15:50:25,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:25,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:25,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:25,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:25,308 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:25,308 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:25,308 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:25,308 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:25,308 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:25,308 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,308 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:25,308 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:25,308 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-18 15:50:25,308 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:25,308 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:25,310 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,348 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:25,439 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:25,440 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,442 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,442 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,446 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,446 INFO L448 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_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,467 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,467 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,470 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,471 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,495 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,495 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,497 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,497 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,523 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,529 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,529 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,548 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,551 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,551 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,574 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,575 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,578 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,578 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~d=0, ULTIMATE.start_f_#in~d=0} Honda state: {ULTIMATE.start_f_~d=2, ULTIMATE.start_f_#in~d=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,596 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,596 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,598 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,598 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0} Honda state: {ULTIMATE.start_f_~c~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,615 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,618 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,618 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,633 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:25,635 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:25,635 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,651 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:25,651 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:25,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:25,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:39,606 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-18 15:50:39,612 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:39,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:39,613 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:39,613 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:39,613 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:39,613 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:39,613 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:39,613 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:39,613 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-11-18 15:50:39,613 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:39,613 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:39,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,616 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,639 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:39,714 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:39,715 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:39,715 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,716 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,716 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,716 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,716 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,716 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,716 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,716 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,717 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,717 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,718 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,721 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,721 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,721 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,721 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,722 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,722 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,722 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,723 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,723 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,723 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,723 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,723 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,723 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,724 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,724 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,724 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,725 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,725 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,725 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,725 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,726 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,726 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,726 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,727 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,727 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,727 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,727 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,727 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,727 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,728 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,728 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,728 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,729 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,729 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,729 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:39,729 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,730 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,730 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:39,730 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:39,731 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:39,731 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:39,731 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:39,731 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:39,732 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:39,732 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:39,733 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:39,734 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:39,757 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:39,780 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2018-11-18 15:50:39,781 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 15:50:39,781 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:39,783 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:39,783 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:39,783 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~z~0, ULTIMATE.start_f_~k~0) = -1*ULTIMATE.start_f_~z~0 + 1*ULTIMATE.start_f_~k~0 Supporting invariants [1*ULTIMATE.start_f_~z~0 - 1 >= 0] [2018-11-18 15:50:39,798 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:39,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:39,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:39,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:39,825 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 [2018-11-18 15:50:39,825 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 15:50:39,855 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 42 states and 52 transitions. Complement of second has 6 states. [2018-11-18 15:50:39,855 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 [2018-11-18 15:50:39,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 15:50:39,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 32 transitions. [2018-11-18 15:50:39,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 15:50:39,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:39,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 15:50:39,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:39,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 32 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 15:50:39,857 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:39,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 52 transitions. [2018-11-18 15:50:39,858 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-11-18 15:50:39,859 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 35 states and 44 transitions. [2018-11-18 15:50:39,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-18 15:50:39,859 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 31 [2018-11-18 15:50:39,859 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 44 transitions. [2018-11-18 15:50:39,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:39,860 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 44 transitions. [2018-11-18 15:50:39,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 44 transitions. [2018-11-18 15:50:39,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 27. [2018-11-18 15:50:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 15:50:39,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2018-11-18 15:50:39,863 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-11-18 15:50:39,863 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 34 transitions. [2018-11-18 15:50:39,863 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 15:50:39,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 34 transitions. [2018-11-18 15:50:39,864 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:39,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:39,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:39,865 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:39,865 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:39,865 INFO L794 eck$LassoCheckResult]: Stem: 314#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 312#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 313#L32 assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 315#L12 assume !!(f_~k~0 <= 1073741823); 319#L15-2 assume true; 295#L15 assume !(f_~z~0 < f_~k~0); 296#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 318#L3 assume !(0 == __VERIFIER_assert_~cond); 317#L3-2 assume { :end_inline___VERIFIER_assert } true; 301#L20-2 [2018-11-18 15:50:39,865 INFO L796 eck$LassoCheckResult]: Loop: 301#L20-2 assume true; 302#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 303#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 301#L20-2 [2018-11-18 15:50:39,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,865 INFO L82 PathProgramCache]: Analyzing trace with hash -563527921, now seen corresponding path program 1 times [2018-11-18 15:50:39,866 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:39,866 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:39,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:39,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:39,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:50:39,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 15:50:39,912 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-18 15:50:39,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,913 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 1 times [2018-11-18 15:50:39,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:39,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:39,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:39,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:50:39,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:50:39,936 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-11-18 15:50:39,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:39,965 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2018-11-18 15:50:39,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:50:39,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 40 transitions. [2018-11-18 15:50:39,966 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:39,967 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 29 states and 34 transitions. [2018-11-18 15:50:39,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-18 15:50:39,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-18 15:50:39,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2018-11-18 15:50:39,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:39,967 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-11-18 15:50:39,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2018-11-18 15:50:39,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-18 15:50:39,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 15:50:39,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-11-18 15:50:39,971 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-18 15:50:39,971 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-18 15:50:39,971 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 15:50:39,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2018-11-18 15:50:39,972 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:39,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:39,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:39,972 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:39,972 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:39,972 INFO L794 eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 383#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 384#L32 assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 386#L12 assume !!(f_~k~0 <= 1073741823); 389#L15-2 assume true; 366#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 367#L15-2 assume true; 364#L15 assume !(f_~z~0 < f_~k~0); 365#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 390#L3 assume !(0 == __VERIFIER_assert_~cond); 388#L3-2 assume { :end_inline___VERIFIER_assert } true; 372#L20-2 [2018-11-18 15:50:39,973 INFO L796 eck$LassoCheckResult]: Loop: 372#L20-2 assume true; 373#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 374#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 372#L20-2 [2018-11-18 15:50:39,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,973 INFO L82 PathProgramCache]: Analyzing trace with hash -336825591, now seen corresponding path program 1 times [2018-11-18 15:50:39,973 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:39,973 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:39,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:39,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,981 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 2 times [2018-11-18 15:50:39,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:39,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:39,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:39,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:39,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540092, now seen corresponding path program 1 times [2018-11-18 15:50:39,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:39,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:39,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,990 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:39,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,081 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:40,081 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:40,081 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:40,081 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:40,082 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:40,082 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,082 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:40,082 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:40,082 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-18 15:50:40,082 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:40,082 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:40,083 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,178 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:40,178 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,187 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,187 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,194 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:40,194 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,209 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,209 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,215 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:40,215 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,231 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,231 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,248 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:40,248 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,321 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:40,323 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:40,323 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:40,323 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:40,323 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:40,323 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:40,323 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,323 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:40,323 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:40,323 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-11-18 15:50:40,323 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:40,323 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:40,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,337 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,339 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,428 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:40,429 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:40,429 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:40,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:40,429 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:40,429 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:40,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:40,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:40,430 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:40,430 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:40,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:40,430 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:40,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:40,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:40,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:40,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:40,432 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:40,432 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:40,435 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:40,435 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:40,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:40,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:40,436 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:40,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:40,438 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:40,438 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:40,446 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:40,450 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 15:50:40,450 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 15:50:40,451 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:40,452 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:40,452 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:40,452 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 15:50:40,470 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:40,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:40,487 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:40,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:40,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:40,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:40,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:40,504 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9 Second operand 5 states. [2018-11-18 15:50:40,527 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 32 transitions. cyclomatic complexity: 9. Second operand 5 states. Result 35 states and 42 transitions. Complement of second has 8 states. [2018-11-18 15:50:40,527 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 [2018-11-18 15:50:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 15:50:40,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-18 15:50:40,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:40,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-18 15:50:40,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:40,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-18 15:50:40,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:40,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 42 transitions. [2018-11-18 15:50:40,529 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:40,529 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 34 states and 41 transitions. [2018-11-18 15:50:40,529 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 26 [2018-11-18 15:50:40,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-18 15:50:40,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 41 transitions. [2018-11-18 15:50:40,529 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:40,529 INFO L705 BuchiCegarLoop]: Abstraction has 34 states and 41 transitions. [2018-11-18 15:50:40,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states and 41 transitions. [2018-11-18 15:50:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2018-11-18 15:50:40,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 15:50:40,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2018-11-18 15:50:40,531 INFO L728 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-18 15:50:40,531 INFO L608 BuchiCegarLoop]: Abstraction has 33 states and 40 transitions. [2018-11-18 15:50:40,531 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 15:50:40,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 33 states and 40 transitions. [2018-11-18 15:50:40,531 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:40,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:40,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:40,531 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:40,531 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:40,532 INFO L794 eck$LassoCheckResult]: Stem: 528#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 526#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 527#L32 assume !(0 != main_~c~1 % 256);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 530#L12-1 assume !!(f_~k~0 <= 1073741823); 521#L15-6 assume true; 522#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 523#L15-6 assume true; 524#L15-4 assume !(f_~z~0 < f_~k~0); 518#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 519#L3-3 assume !(0 == __VERIFIER_assert_~cond); 520#L3-5 assume { :end_inline___VERIFIER_assert } true; 507#L20-5 [2018-11-18 15:50:40,532 INFO L796 eck$LassoCheckResult]: Loop: 507#L20-5 assume true; 508#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 509#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 507#L20-5 [2018-11-18 15:50:40,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:40,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1892980926, now seen corresponding path program 1 times [2018-11-18 15:50:40,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:40,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:40,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:40,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,538 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:40,539 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 1 times [2018-11-18 15:50:40,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:40,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:40,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:40,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:40,544 INFO L82 PathProgramCache]: Analyzing trace with hash 874260548, now seen corresponding path program 1 times [2018-11-18 15:50:40,544 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:40,544 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:40,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:40,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:40,620 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:40,620 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:40,620 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:40,620 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:40,620 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:40,620 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,620 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:40,620 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:40,620 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-18 15:50:40,621 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:40,621 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:40,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,623 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,635 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,645 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,712 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:40,712 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,714 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,714 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,716 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:40,716 INFO L448 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_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,732 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,736 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:40,736 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,752 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,752 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,757 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:40,758 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Honda state: {ULTIMATE.start_f_#t~nondet3=-256, ULTIMATE.start_f_~c~0=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,773 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:40,773 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:40,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:40,843 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:40,844 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:40,844 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:40,845 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:40,845 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:40,845 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:40,845 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:40,845 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:40,845 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:40,845 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-11-18 15:50:40,845 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:40,845 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:40,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:40,990 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:40,990 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:40,990 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:40,991 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:40,991 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:40,991 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:40,991 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:40,991 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:40,991 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:40,991 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:40,992 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:40,992 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:40,992 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:40,992 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:40,992 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:40,992 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:40,993 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:40,993 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:41,003 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,003 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,004 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,004 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,005 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:41,005 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:41,011 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,011 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:41,011 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,012 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,012 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,012 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:41,012 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:41,013 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,014 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,014 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,014 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:41,014 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,014 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,015 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:41,015 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:41,015 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,016 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,016 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,016 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,016 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,016 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,017 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:41,017 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:41,020 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,020 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,021 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:41,021 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,021 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,021 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,021 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:41,021 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:41,022 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,022 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,022 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:41,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,023 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:41,023 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:41,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,024 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,024 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,025 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:41,025 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,025 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,025 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,025 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:41,025 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:41,026 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:41,026 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:41,026 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:41,026 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:41,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:41,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:41,028 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:41,028 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:41,035 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:41,037 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 15:50:41,037 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 15:50:41,038 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:41,039 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:41,039 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:41,039 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 15:50:41,047 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:41,066 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:41,073 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:41,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:41,089 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:41,089 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12 Second operand 5 states. [2018-11-18 15:50:41,123 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 33 states and 40 transitions. cyclomatic complexity: 12. Second operand 5 states. Result 41 states and 50 transitions. Complement of second has 8 states. [2018-11-18 15:50:41,124 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 [2018-11-18 15:50:41,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-18 15:50:41,124 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-18 15:50:41,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:41,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-18 15:50:41,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:41,125 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 6 letters. [2018-11-18 15:50:41,125 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:41,125 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 50 transitions. [2018-11-18 15:50:41,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:41,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 40 states and 49 transitions. [2018-11-18 15:50:41,126 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 15:50:41,126 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 15:50:41,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 49 transitions. [2018-11-18 15:50:41,127 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:41,127 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 49 transitions. [2018-11-18 15:50:41,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 49 transitions. [2018-11-18 15:50:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2018-11-18 15:50:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 15:50:41,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2018-11-18 15:50:41,129 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 15:50:41,129 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2018-11-18 15:50:41,129 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 15:50:41,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2018-11-18 15:50:41,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-18 15:50:41,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:41,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:41,130 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:41,130 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 15:50:41,130 INFO L794 eck$LassoCheckResult]: Stem: 685#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 683#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 684#L32 assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 686#L12 assume !!(f_~k~0 <= 1073741823); 690#L15-2 assume true; 661#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 662#L15-2 assume true; 659#L15 assume !(f_~z~0 < f_~k~0); 660#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 691#L3 assume !(0 == __VERIFIER_assert_~cond); 688#L3-2 assume { :end_inline___VERIFIER_assert } true; 689#L20-2 assume true; 671#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 672#L20 assume 0 != f_~c~0 % 256; 682#L21 [2018-11-18 15:50:41,130 INFO L796 eck$LassoCheckResult]: Loop: 682#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 667#L20-2 assume true; 668#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 692#L20 assume 0 != f_~c~0 % 256; 682#L21 [2018-11-18 15:50:41,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:41,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1327540096, now seen corresponding path program 1 times [2018-11-18 15:50:41,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:41,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:41,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:41,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:41,137 INFO L82 PathProgramCache]: Analyzing trace with hash 2421209, now seen corresponding path program 1 times [2018-11-18 15:50:41,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:41,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:41,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:41,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:41,141 INFO L82 PathProgramCache]: Analyzing trace with hash 144044760, now seen corresponding path program 1 times [2018-11-18 15:50:41,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:41,141 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:41,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:41,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:41,172 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:41,173 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:41,173 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:41,173 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:41,173 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:41,173 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,173 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:41,173 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:41,173 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-11-18 15:50:41,173 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:41,173 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:41,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,262 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:41,262 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,279 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,281 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,288 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,288 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Honda state: {ULTIMATE.start_f_#t~nondet4=-1, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,305 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,305 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,314 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,314 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=128, ULTIMATE.start_f_~c~0=128} Honda state: {ULTIMATE.start_f_#t~nondet3=128, ULTIMATE.start_f_~c~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,335 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,335 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,354 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:41,354 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,363 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,363 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] [2018-11-18 15:50:41,445 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:41,445 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:41,445 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:41,445 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:41,445 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:41,445 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,446 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:41,446 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:41,446 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-18 15:50:41,446 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:41,446 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:41,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,467 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,605 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:41,605 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,608 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,608 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,625 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:41,625 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,636 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,636 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0, ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=-6, ULTIMATE.start_f_~k~0=-1}, {ULTIMATE.start_f_~z~0=2, ULTIMATE.start_f_~k~0=5}, {ULTIMATE.start_f_~z~0=3, ULTIMATE.start_f_~k~0=-4}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,661 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,666 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,666 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 34 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 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,682 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,682 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,688 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,688 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0, ULTIMATE.start_f_~y~0=0} Honda state: {ULTIMATE.start_f_#t~nondet4=255, ULTIMATE.start_f_~y~0=255} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,703 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,703 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,705 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,705 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,719 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,721 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,722 INFO L448 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_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 37 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 37 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,738 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,738 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 38 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 38 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,753 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,753 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,755 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,755 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=0, ULTIMATE.start___VERIFIER_assert_~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 39 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 39 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,770 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,771 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,772 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:41,772 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 40 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 40 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,788 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:41,788 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 41 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 41 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,807 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:41,807 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:41,940 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:41,941 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:41,941 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:41,942 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:41,942 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:41,942 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:41,942 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:41,942 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:41,942 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:41,942 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-11-18 15:50:41,942 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:41,942 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:41,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,948 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,957 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,963 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,970 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:41,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,112 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:42,112 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:42,112 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,112 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,113 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,113 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:42,113 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:42,115 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:42,116 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,116 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,116 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,116 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,117 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:42,117 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:42,121 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:42,122 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,122 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,122 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,122 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,122 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,123 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:42,123 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:42,127 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:42,127 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,128 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:42,128 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,128 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,128 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,128 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:42,129 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:42,129 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:42,129 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,130 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,130 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,130 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,130 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:42,131 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:42,135 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:42,135 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:42,135 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:42,135 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:42,135 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:42,136 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:42,136 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:42,136 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:42,141 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:42,144 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-18 15:50:42,144 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 15:50:42,145 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:42,145 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:42,145 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:42,145 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 15:50:42,155 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:42,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:42,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:42,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:42,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:42,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:42,214 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 [2018-11-18 15:50:42,214 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-11-18 15:50:42,255 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 52 states and 65 transitions. Complement of second has 7 states. [2018-11-18 15:50:42,256 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 [2018-11-18 15:50:42,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:42,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-11-18 15:50:42,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-18 15:50:42,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:42,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-11-18 15:50:42,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:42,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-11-18 15:50:42,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:42,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 65 transitions. [2018-11-18 15:50:42,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 15:50:42,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 47 states and 58 transitions. [2018-11-18 15:50:42,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 15:50:42,259 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 15:50:42,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 47 states and 58 transitions. [2018-11-18 15:50:42,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:42,260 INFO L705 BuchiCegarLoop]: Abstraction has 47 states and 58 transitions. [2018-11-18 15:50:42,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states and 58 transitions. [2018-11-18 15:50:42,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-11-18 15:50:42,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-18 15:50:42,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-11-18 15:50:42,262 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-18 15:50:42,262 INFO L608 BuchiCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-11-18 15:50:42,262 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 15:50:42,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 57 transitions. [2018-11-18 15:50:42,262 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 15:50:42,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:42,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:42,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:42,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 15:50:42,263 INFO L794 eck$LassoCheckResult]: Stem: 869#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 865#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 866#L32 assume !(0 != main_~c~1 % 256);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 871#L12-1 assume !!(f_~k~0 <= 1073741823); 858#L15-6 assume true; 859#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 860#L15-6 assume true; 861#L15-4 assume !(f_~z~0 < f_~k~0); 854#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 855#L3-3 assume !(0 == __VERIFIER_assert_~cond); 856#L3-5 assume { :end_inline___VERIFIER_assert } true; 857#L20-5 assume true; 842#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 843#L20-3 assume 0 != f_~c~0 % 256; 845#L21-1 [2018-11-18 15:50:42,263 INFO L796 eck$LassoCheckResult]: Loop: 845#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 838#L20-5 assume true; 839#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 878#L20-3 assume 0 != f_~c~0 % 256; 845#L21-1 [2018-11-18 15:50:42,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:42,264 INFO L82 PathProgramCache]: Analyzing trace with hash 874260544, now seen corresponding path program 1 times [2018-11-18 15:50:42,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:42,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:42,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:42,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:42,270 INFO L82 PathProgramCache]: Analyzing trace with hash 4052761, now seen corresponding path program 1 times [2018-11-18 15:50:42,271 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:42,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:42,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:42,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:42,275 INFO L82 PathProgramCache]: Analyzing trace with hash -42088488, now seen corresponding path program 1 times [2018-11-18 15:50:42,275 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:42,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:42,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:42,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:42,307 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:42,307 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:42,307 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:42,307 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:42,308 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:42,308 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,308 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:42,308 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:42,308 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-11-18 15:50:42,308 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:42,308 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:42,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,397 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:42,397 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 42 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 42 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,402 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,402 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 43 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 43 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:42,422 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,433 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,433 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~z~0=0} Generalized eigenvectors: [{ULTIMATE.start_f_~z~0=0}, {ULTIMATE.start_f_~z~0=-3}, {ULTIMATE.start_f_~z~0=2}] Lambdas: [0, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 44 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 44 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,456 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,463 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,464 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet3=64, ULTIMATE.start_f_~c~0=64} Honda state: {ULTIMATE.start_f_#t~nondet3=64, ULTIMATE.start_f_~c~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 45 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 45 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,480 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,497 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,497 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Honda state: {ULTIMATE.start_f_~x~0=1, ULTIMATE.start_f_~d=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 46 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 46 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,500 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,500 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,507 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,507 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Honda state: {ULTIMATE.start_f_#t~nondet4=-192, ULTIMATE.start_f_~y~0=64} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-11-18 15:50:42,596 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:42,596 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:42,596 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:42,596 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:42,596 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:42,597 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,597 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:42,597 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:42,597 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-18 15:50:42,597 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:42,597 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:42,598 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:42,715 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:42,715 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 47 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 47 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,717 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,726 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,726 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-128, ULTIMATE.start_f_#t~nondet3=-128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 48 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 48 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,742 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,742 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,744 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,744 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 49 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 49 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,759 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,764 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,764 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 50 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 50 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,779 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,781 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,781 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 51 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 51 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,795 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,796 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 52 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 52 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:42,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,824 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,824 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0} Honda state: {ULTIMATE.start_f_~k~0=2, ULTIMATE.start_f_~z~0=2} Generalized eigenvectors: [{ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=-7}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=6}, {ULTIMATE.start_f_~k~0=0, ULTIMATE.start_f_~z~0=0}] Lambdas: [1, 1, 3] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 53 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 53 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,839 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,840 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,841 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,841 INFO L448 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_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 54 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 54 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,857 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,857 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,863 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,863 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~y~0=0, ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_~y~0=255, ULTIMATE.start_f_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 55 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 55 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,878 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,878 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,880 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,880 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 56 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 56 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,895 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,895 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,897 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,897 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet1=0} Honda state: {ULTIMATE.start_f_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 57 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 57 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,912 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,912 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:42,914 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:42,914 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 58 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 58 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,928 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:42,929 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 59 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 59 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:42,945 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:42,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:43,076 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:43,077 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:43,077 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:43,077 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:43,077 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:43,077 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:43,077 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:43,077 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:43,077 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:43,077 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-11-18 15:50:43,077 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:43,077 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:43,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,197 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:43,197 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:43,197 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,198 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,198 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,198 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,198 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,199 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,199 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,200 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,200 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,201 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,201 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:43,201 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,201 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,201 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,201 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:43,201 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:43,202 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,202 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,202 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,202 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:43,202 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,202 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,202 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,203 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:43,203 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:43,203 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,203 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,203 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,204 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,204 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,204 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,204 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,204 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,206 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,206 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,207 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,207 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:43,207 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,207 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,207 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,207 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:43,207 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:43,208 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,208 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,208 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,208 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,208 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,208 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,209 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,209 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,212 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,212 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,213 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,213 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:43,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,213 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,213 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,213 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:43,213 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:43,214 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,214 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,214 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,214 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:43,214 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,215 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,215 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,215 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:43,215 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:43,215 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,215 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,216 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,216 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,217 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,217 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,221 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,221 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,222 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,222 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,222 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,222 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,223 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,223 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,226 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:43,227 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:43,227 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:43,227 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:43,227 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:43,227 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:43,228 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:43,228 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:43,233 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:43,236 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 15:50:43,236 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 15:50:43,236 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:43,237 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:43,237 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:43,238 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0, ULTIMATE.start_f_~d) = 1*ULTIMATE.start_f_~x~0 - 1*ULTIMATE.start_f_~d Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 15:50:43,263 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:43,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:43,310 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:43,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:43,332 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 [2018-11-18 15:50:43,332 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-11-18 15:50:43,364 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 57 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 59 states and 74 transitions. Complement of second has 7 states. [2018-11-18 15:50:43,365 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 [2018-11-18 15:50:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-11-18 15:50:43,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 4 letters. [2018-11-18 15:50:43,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:43,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 18 letters. Loop has 4 letters. [2018-11-18 15:50:43,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:43,366 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 14 letters. Loop has 8 letters. [2018-11-18 15:50:43,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:43,367 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 74 transitions. [2018-11-18 15:50:43,367 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:43,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 67 transitions. [2018-11-18 15:50:43,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 15:50:43,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 15:50:43,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 67 transitions. [2018-11-18 15:50:43,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:43,368 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 67 transitions. [2018-11-18 15:50:43,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 67 transitions. [2018-11-18 15:50:43,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2018-11-18 15:50:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-18 15:50:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2018-11-18 15:50:43,370 INFO L728 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-11-18 15:50:43,370 INFO L608 BuchiCegarLoop]: Abstraction has 53 states and 66 transitions. [2018-11-18 15:50:43,370 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-18 15:50:43,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states and 66 transitions. [2018-11-18 15:50:43,370 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:43,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:43,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:43,371 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:43,371 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:43,371 INFO L794 eck$LassoCheckResult]: Stem: 1061#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1057#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1058#L32 assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1062#L12 assume !!(f_~k~0 <= 1073741823); 1066#L15-2 assume true; 1034#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1035#L15-2 assume true; 1032#L15 assume !(f_~z~0 < f_~k~0); 1033#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1067#L3 assume !(0 == __VERIFIER_assert_~cond); 1064#L3-2 assume { :end_inline___VERIFIER_assert } true; 1065#L20-2 assume true; 1074#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1073#L20 assume 0 != f_~c~0 % 256; 1059#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1060#L20-2 assume true; 1079#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1078#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-11-18 15:50:43,371 INFO L796 eck$LassoCheckResult]: Loop: 1040#L20-2 assume true; 1041#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1044#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1040#L20-2 [2018-11-18 15:50:43,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:43,372 INFO L82 PathProgramCache]: Analyzing trace with hash 144044764, now seen corresponding path program 1 times [2018-11-18 15:50:43,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:43,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:43,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:43,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:43,382 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 3 times [2018-11-18 15:50:43,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:43,382 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:43,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:43,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,385 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:43,385 INFO L82 PathProgramCache]: Analyzing trace with hash 565273553, now seen corresponding path program 2 times [2018-11-18 15:50:43,386 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:43,386 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:43,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,386 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:43,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:43,512 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:43,512 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:43,512 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:43,512 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:43,512 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:43,512 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:43,512 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:43,512 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:43,512 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-18 15:50:43,512 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:43,512 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:43,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:43,675 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:43,675 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 60 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 60 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:43,680 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:43,680 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 61 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 61 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:43,700 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:43,700 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:44,115 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:44,116 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:44,116 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:44,116 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:44,116 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:44,116 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:44,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:44,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:44,117 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-11-18 15:50:44,117 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:44,117 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:44,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,138 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,141 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,230 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:44,230 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:44,230 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 [2018-11-18 15:50:44,231 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:44,231 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:44,231 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:44,231 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:44,232 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:44,232 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:44,234 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:44,234 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:44,234 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:44,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:44,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:44,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:44,235 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:44,235 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:44,240 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:44,244 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 15:50:44,244 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 15:50:44,244 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:44,245 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:44,245 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:44,245 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 15:50:44,258 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:44,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:44,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:44,290 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:44,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:44,297 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:44,297 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21 Second operand 5 states. [2018-11-18 15:50:44,319 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states and 66 transitions. cyclomatic complexity: 21. Second operand 5 states. Result 80 states and 97 transitions. Complement of second has 8 states. [2018-11-18 15:50:44,321 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 [2018-11-18 15:50:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:44,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-18 15:50:44,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-18 15:50:44,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:44,322 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:44,322 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:44,323 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-18 15:50:44,323 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:44,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 80 states and 97 transitions. [2018-11-18 15:50:44,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:44,324 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 80 states to 68 states and 83 transitions. [2018-11-18 15:50:44,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-18 15:50:44,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-18 15:50:44,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 83 transitions. [2018-11-18 15:50:44,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:44,325 INFO L705 BuchiCegarLoop]: Abstraction has 68 states and 83 transitions. [2018-11-18 15:50:44,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states and 83 transitions. [2018-11-18 15:50:44,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2018-11-18 15:50:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-18 15:50:44,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2018-11-18 15:50:44,327 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-11-18 15:50:44,327 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 80 transitions. [2018-11-18 15:50:44,327 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-18 15:50:44,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 80 transitions. [2018-11-18 15:50:44,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:44,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:44,328 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:44,329 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:44,329 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:44,329 INFO L794 eck$LassoCheckResult]: Stem: 1296#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1292#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1293#L32 assume !(0 != main_~c~1 % 256);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1298#L12-1 assume !!(f_~k~0 <= 1073741823); 1282#L15-6 assume true; 1283#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1284#L15-6 assume true; 1285#L15-4 assume !(f_~z~0 < f_~k~0); 1278#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1279#L3-3 assume !(0 == __VERIFIER_assert_~cond); 1280#L3-5 assume { :end_inline___VERIFIER_assert } true; 1281#L20-5 assume true; 1304#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1302#L20-3 assume 0 != f_~c~0 % 256; 1289#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1290#L20-5 assume true; 1306#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1305#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-11-18 15:50:44,329 INFO L796 eck$LassoCheckResult]: Loop: 1263#L20-5 assume true; 1264#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1267#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1263#L20-5 [2018-11-18 15:50:44,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:44,329 INFO L82 PathProgramCache]: Analyzing trace with hash -42088484, now seen corresponding path program 1 times [2018-11-18 15:50:44,329 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:44,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,330 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,337 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:44,337 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 2 times [2018-11-18 15:50:44,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:44,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:44,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:44,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:44,340 INFO L82 PathProgramCache]: Analyzing trace with hash 272514150, now seen corresponding path program 2 times [2018-11-18 15:50:44,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:44,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:44,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,341 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:44,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:44,442 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:44,443 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:44,443 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:44,443 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:44,443 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:44,443 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,443 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:44,443 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:44,443 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-18 15:50:44,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:44,443 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:44,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,457 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,464 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,465 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:44,566 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:44,566 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 62 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 62 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,568 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:44,568 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:44,573 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:44,573 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 63 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 63 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:44,588 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:44,596 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:44,597 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 64 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 64 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,612 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:44,612 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 65 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 65 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,630 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:44,630 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:44,992 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:44,993 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:44,993 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:44,993 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:44,993 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:44,993 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:44,993 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:44,993 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:44,993 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:44,993 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-11-18 15:50:44,993 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:44,994 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:44,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,121 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:45,121 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:45,121 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:45,122 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:45,122 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:45,122 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:45,122 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:45,123 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:45,123 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:45,124 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:45,125 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:45,125 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:45,125 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:45,125 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:45,125 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:45,125 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:45,125 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:45,126 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:45,126 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:45,126 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:45,126 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:45,126 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:45,127 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:45,127 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:45,127 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:45,127 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:45,128 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:45,128 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:45,129 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:45,129 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:45,129 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:45,129 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:45,130 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:45,130 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:45,134 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:45,136 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 15:50:45,136 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 15:50:45,137 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:45,137 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:45,137 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:45,138 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 15:50:45,155 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:45,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:45,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:45,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:45,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:45,198 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:45,198 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25 Second operand 5 states. [2018-11-18 15:50:45,217 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 80 transitions. cyclomatic complexity: 25. Second operand 5 states. Result 92 states and 111 transitions. Complement of second has 8 states. [2018-11-18 15:50:45,217 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 [2018-11-18 15:50:45,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-18 15:50:45,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 3 letters. [2018-11-18 15:50:45,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:45,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:45,218 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:45,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 18 letters. Loop has 6 letters. [2018-11-18 15:50:45,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:45,219 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 92 states and 111 transitions. [2018-11-18 15:50:45,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:45,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 92 states to 80 states and 97 transitions. [2018-11-18 15:50:45,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2018-11-18 15:50:45,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2018-11-18 15:50:45,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 97 transitions. [2018-11-18 15:50:45,221 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:45,221 INFO L705 BuchiCegarLoop]: Abstraction has 80 states and 97 transitions. [2018-11-18 15:50:45,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 97 transitions. [2018-11-18 15:50:45,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 77. [2018-11-18 15:50:45,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 15:50:45,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 94 transitions. [2018-11-18 15:50:45,224 INFO L728 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-11-18 15:50:45,224 INFO L608 BuchiCegarLoop]: Abstraction has 77 states and 94 transitions. [2018-11-18 15:50:45,224 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-18 15:50:45,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 94 transitions. [2018-11-18 15:50:45,225 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-18 15:50:45,225 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:45,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:45,226 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:45,226 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:45,226 INFO L794 eck$LassoCheckResult]: Stem: 1554#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1549#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1550#L32 assume 0 != main_~c~1 % 256;assume { :begin_inline_f } true;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 1555#L12 assume !!(f_~k~0 <= 1073741823); 1558#L15-2 assume true; 1516#L15 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1517#L15-2 assume true; 1514#L15 assume !(f_~z~0 < f_~k~0); 1515#L15-3 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1559#L3 assume !(0 == __VERIFIER_assert_~cond); 1557#L3-2 assume { :end_inline___VERIFIER_assert } true; 1529#L20-2 assume true; 1531#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1587#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1585#L20-2 assume true; 1534#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1535#L20 assume 0 != f_~c~0 % 256; 1545#L21 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 1582#L20-2 assume true; 1581#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1570#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-11-18 15:50:45,226 INFO L796 eck$LassoCheckResult]: Loop: 1571#L20-2 assume true; 1576#L18 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1573#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1571#L20-2 [2018-11-18 15:50:45,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:45,226 INFO L82 PathProgramCache]: Analyzing trace with hash -2051539711, now seen corresponding path program 3 times [2018-11-18 15:50:45,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:45,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:45,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,227 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:45,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:45,235 INFO L82 PathProgramCache]: Analyzing trace with hash 67724, now seen corresponding path program 4 times [2018-11-18 15:50:45,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:45,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:45,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,236 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:45,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:45,238 INFO L82 PathProgramCache]: Analyzing trace with hash -34870388, now seen corresponding path program 4 times [2018-11-18 15:50:45,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:45,238 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:45,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,239 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:45,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:45,400 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:45,400 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:45,400 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:45,400 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:45,400 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:45,400 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,400 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:45,400 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:45,400 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-18 15:50:45,400 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:45,401 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:45,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,451 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,561 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:45,561 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 66 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 66 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:45,567 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:45,574 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:45,574 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 67 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 67 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,589 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:45,590 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:45,591 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:45,591 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 68 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 68 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,607 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:45,607 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:45,621 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:45,622 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 69 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 69 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:45,624 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 70 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 70 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,641 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:45,641 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:45,976 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:45,977 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:45,978 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:45,978 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:45,978 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:45,978 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:45,978 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:45,978 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:45,978 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:45,978 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-18 15:50:45,978 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:45,978 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:45,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,981 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:45,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,102 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:46,102 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:46,102 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:46,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:46,102 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:46,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:46,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:46,103 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:46,103 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:46,103 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:46,103 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:46,103 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:46,103 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:46,104 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:46,104 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:46,104 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:46,104 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:46,104 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:46,106 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:46,106 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:46,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:46,107 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:46,107 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:46,107 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:46,107 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:46,107 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:46,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:46,109 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:46,109 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:46,109 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:46,109 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:46,109 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:46,110 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:46,110 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:46,115 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:46,119 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-18 15:50:46,120 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-18 15:50:46,120 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:46,120 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:46,121 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:46,121 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 1 >= 0] [2018-11-18 15:50:46,150 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:46,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:46,232 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:46,233 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-18 15:50:46,252 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-11-18 15:50:46,265 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 [2018-11-18 15:50:46,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-18 15:50:46,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:46,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:46,266 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 15:50:46,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,288 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:46,294 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:46,295 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-18 15:50:46,311 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 90 states and 107 transitions. Complement of second has 8 states. [2018-11-18 15:50:46,311 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 [2018-11-18 15:50:46,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:46,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-18 15:50:46,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:46,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:46,312 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 15:50:46,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,328 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:46,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:46,338 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 2 loop predicates [2018-11-18 15:50:46,339 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29 Second operand 5 states. [2018-11-18 15:50:46,356 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 77 states and 94 transitions. cyclomatic complexity: 29. Second operand 5 states. Result 95 states and 114 transitions. Complement of second has 7 states. [2018-11-18 15:50:46,356 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 [2018-11-18 15:50:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2018-11-18 15:50:46,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:46,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:46,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 24 letters. Loop has 3 letters. [2018-11-18 15:50:46,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:46,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 21 letters. Loop has 6 letters. [2018-11-18 15:50:46,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:46,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 95 states and 114 transitions. [2018-11-18 15:50:46,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 15:50:46,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 95 states to 40 states and 48 transitions. [2018-11-18 15:50:46,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2018-11-18 15:50:46,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 15:50:46,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 48 transitions. [2018-11-18 15:50:46,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 15:50:46,359 INFO L705 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-18 15:50:46,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states and 48 transitions. [2018-11-18 15:50:46,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-11-18 15:50:46,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-18 15:50:46,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-11-18 15:50:46,361 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-18 15:50:46,361 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-11-18 15:50:46,361 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-18 15:50:46,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 48 transitions. [2018-11-18 15:50:46,361 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 15:50:46,361 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:50:46,361 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:50:46,362 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:46,362 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 15:50:46,362 INFO L794 eck$LassoCheckResult]: Stem: 2167#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 2165#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 2166#L32 assume !(0 != main_~c~1 % 256);assume { :begin_inline_f } true;f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 2168#L12-1 assume !!(f_~k~0 <= 1073741823); 2158#L15-6 assume true; 2159#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 2160#L15-6 assume true; 2161#L15-4 assume !(f_~z~0 < f_~k~0); 2155#L15-7 assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 2156#L3-3 assume !(0 == __VERIFIER_assert_~cond); 2157#L3-5 assume { :end_inline___VERIFIER_assert } true; 2142#L20-5 assume true; 2144#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2179#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 2178#L20-5 assume true; 2147#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2148#L20-3 assume 0 != f_~c~0 % 256; 2170#L21-1 f_~x~0 := f_~x~0 - f_~d;f_~y~0 := f_#t~nondet4 % 256;havoc f_#t~nondet4;f_~z~0 := f_~z~0 - 1; 2174#L20-5 assume true; 2173#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2171#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-11-18 15:50:46,362 INFO L796 eck$LassoCheckResult]: Loop: 2152#L20-5 assume true; 2172#L18-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 2151#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 2152#L20-5 [2018-11-18 15:50:46,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1950668182, now seen corresponding path program 3 times [2018-11-18 15:50:46,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:46,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:46,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,363 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:46,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,371 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,371 INFO L82 PathProgramCache]: Analyzing trace with hash 120353, now seen corresponding path program 3 times [2018-11-18 15:50:46,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:46,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:46,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,372 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:46,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:46,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1448385644, now seen corresponding path program 4 times [2018-11-18 15:50:46,374 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:50:46,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:50:46,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,375 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 15:50:46,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:50:46,522 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:46,522 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:46,522 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:46,522 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:46,522 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 15:50:46,522 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,523 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:46,523 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:46,523 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-18 15:50:46,523 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:46,523 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:46,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,544 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:46,649 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:46,649 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 71 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 71 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,653 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,653 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,655 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,655 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~k~0=0} Honda state: {ULTIMATE.start_f_~k~0=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 72 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 72 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,671 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,679 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,679 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~c~0=0, ULTIMATE.start_f_#t~nondet3=0} Honda state: {ULTIMATE.start_f_~c~0=-256, ULTIMATE.start_f_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 73 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 73 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,694 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,694 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,696 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,696 INFO L448 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_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 74 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 74 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,716 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,716 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 75 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 75 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,731 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,732 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,747 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,747 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~x~0=0} Honda state: {ULTIMATE.start_f_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 76 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 76 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,749 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,751 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,751 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet0=0} Honda state: {ULTIMATE.start_f_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 77 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 77 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,766 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,766 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,768 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,768 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet2=0} Honda state: {ULTIMATE.start_f_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 78 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 78 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,783 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,784 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,785 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=0} Honda state: {ULTIMATE.start_f_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 79 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 79 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,799 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,800 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,802 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,802 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5=0} Honda state: {ULTIMATE.start_main_#t~nondet5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 80 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 80 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,817 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,817 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:46,819 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 15:50:46,819 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=0, ULTIMATE.start___VERIFIER_assert_#in~cond=0} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 81 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 81 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 15:50:46,835 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6875549-d954-4f16-8bda-a5075295ad89/bin-2019/uautomizer/z3 Starting monitored process 82 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 82 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:46,854 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 15:50:46,854 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 15:50:47,387 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 15:50:47,389 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 15:50:47,389 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 15:50:47,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 15:50:47,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 15:50:47,389 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 15:50:47,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 15:50:47,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 15:50:47,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 15:50:47,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-11-18 15:50:47,389 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 15:50:47,389 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 15:50:47,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,401 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,411 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 15:50:47,517 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 15:50:47,517 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 15:50:47,517 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,518 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,518 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,518 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,518 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,518 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,519 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,519 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,520 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,520 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,520 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,520 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,521 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,521 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,522 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,523 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,523 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,523 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:47,523 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,523 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,524 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:47,524 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:47,524 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,524 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,524 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,524 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:47,525 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,525 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,525 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,525 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:47,525 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:47,525 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,525 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,526 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,526 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,526 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,526 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,526 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,526 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,527 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,527 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,528 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,528 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,528 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,528 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,528 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,528 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,530 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,530 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,530 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,530 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:47,531 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,531 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,531 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,531 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:47,531 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:47,531 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,531 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,532 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,532 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:47,532 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,532 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,532 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,532 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:47,532 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:47,532 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,533 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,533 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,533 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 15:50:47,533 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,533 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,533 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,533 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 15:50:47,533 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 15:50:47,534 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,534 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,534 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,534 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,534 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,535 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,535 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,535 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,536 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 15:50:47,537 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 15:50:47,537 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 15:50:47,537 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 15:50:47,537 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 15:50:47,537 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 15:50:47,538 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 15:50:47,538 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 15:50:47,542 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 15:50:47,546 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 15:50:47,546 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-18 15:50:47,546 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 15:50:47,547 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-18 15:50:47,547 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 15:50:47,547 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~y~0) = 1*ULTIMATE.start_f_~y~0 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0] [2018-11-18 15:50:47,563 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-18 15:50:47,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:47,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,582 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:47,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:47,600 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-18 15:50:47,617 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-11-18 15:50:47,617 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 [2018-11-18 15:50:47,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-18 15:50:47,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:47,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:47,618 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 15:50:47,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:47,643 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-18 15:50:47,643 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-18 15:50:47,655 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 53 states and 61 transitions. Complement of second has 8 states. [2018-11-18 15:50:47,656 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 [2018-11-18 15:50:47,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:47,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-18 15:50:47,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:47,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:47,656 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 15:50:47,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:47,678 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:47,690 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 2 loop predicates [2018-11-18 15:50:47,690 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14 Second operand 5 states. [2018-11-18 15:50:47,707 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 40 states and 48 transitions. cyclomatic complexity: 14. Second operand 5 states. Result 58 states and 68 transitions. Complement of second has 7 states. [2018-11-18 15:50:47,707 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 [2018-11-18 15:50:47,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 15:50:47,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 20 transitions. [2018-11-18 15:50:47,707 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 3 letters. [2018-11-18 15:50:47,707 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:47,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 24 letters. Loop has 3 letters. [2018-11-18 15:50:47,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:47,708 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 20 transitions. Stem has 21 letters. Loop has 6 letters. [2018-11-18 15:50:47,708 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 15:50:47,708 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 68 transitions. [2018-11-18 15:50:47,708 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 15:50:47,708 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 0 states and 0 transitions. [2018-11-18 15:50:47,708 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 15:50:47,708 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 15:50:47,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 15:50:47,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 15:50:47,709 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:50:47,709 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:50:47,709 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:50:47,709 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-18 15:50:47,709 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:50:47,709 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 15:50:47,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 15:50:47,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 03:50:47 BoogieIcfgContainer [2018-11-18 15:50:47,713 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 15:50:47,713 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:50:47,713 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:50:47,713 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:50:47,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:10" (3/4) ... [2018-11-18 15:50:47,716 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:50:47,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:50:47,717 INFO L168 Benchmark]: Toolchain (without parser) took 37780.78 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 350.7 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -81.7 MB). Peak memory consumption was 269.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:47,718 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:47,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 152.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:47,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.75 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. [2018-11-18 15:50:47,719 INFO L168 Benchmark]: Boogie Preprocessor took 12.76 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:47,719 INFO L168 Benchmark]: RCFGBuilder took 188.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:47,720 INFO L168 Benchmark]: BuchiAutomizer took 37400.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 199.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.2 MB). Peak memory consumption was 290.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:47,721 INFO L168 Benchmark]: Witness Printer took 3.27 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:47,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 152.36 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.75 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.76 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 188.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 37400.11 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 199.2 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.2 MB). Peak memory consumption was 290.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.27 ms. Allocated memory is still 1.4 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 11 terminating modules (1 trivial, 8 deterministic, 2 nondeterministic). One deterministic module has affine ranking function -1 * z + k and consists of 5 locations. One deterministic module has affine ranking function -1 * z + k and consists of 4 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function x + -1 * d and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. One nondeterministic module has affine ranking function y and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.3s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 36.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 28 StatesRemovedByMinimization, 9 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 77 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 356 SDtfs, 433 SDslu, 161 SDs, 0 SdLazy, 167 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN1 SILU0 SILI0 SILT0 lasso10 LassoPreprocessingBenchmarks: Lassos: inital55 mio100 ax100 hnf96 lsp39 ukn100 mio100 lsp100 div361 bol100 ite100 ukn100 eq146 hnf43 smp88 dnf100 smp100 tf102 neg98 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 75ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 30.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...