./Ultimate.py --spec ../../sv-benchmarks/c/properties/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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 0.1.23-635dfa2 [2018-12-09 15:56:26,070 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:56:26,071 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:56:26,079 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:56:26,079 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:56:26,080 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:56:26,080 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:56:26,082 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:56:26,083 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:56:26,083 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:56:26,084 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:56:26,084 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:56:26,085 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:56:26,086 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:56:26,086 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:56:26,087 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:56:26,088 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:56:26,089 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:56:26,090 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:56:26,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:56:26,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:56:26,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:56:26,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:56:26,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:56:26,094 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:56:26,094 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:56:26,095 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:56:26,095 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:56:26,096 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:56:26,096 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:56:26,096 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:56:26,097 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:56:26,097 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:56:26,097 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:56:26,098 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:56:26,098 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:56:26,099 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-09 15:56:26,110 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:56:26,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:56:26,111 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 15:56:26,111 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 15:56:26,111 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 15:56:26,111 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 15:56:26,111 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 15:56:26,111 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 15:56:26,112 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 15:56:26,112 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 15:56:26,112 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 15:56:26,112 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:56:26,112 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:56:26,112 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 15:56:26,113 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:56:26,114 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:56:26,114 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 15:56:26,114 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 15:56:26,114 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 15:56:26,114 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:56:26,114 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:56:26,115 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 15:56:26,115 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:56:26,115 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 15:56:26,115 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 15:56:26,116 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 15:56:26,116 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:26,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:56:26,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:56:26,151 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:56:26,152 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:56:26,152 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:56:26,153 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/../../sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-12-09 15:56:26,196 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/data/3772b2a98/20b67d89bcba43f78e38a675c73b8e46/FLAG92f09c06e [2018-12-09 15:56:26,583 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:56:26,584 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/sv-benchmarks/c/loops/trex01_false-unreach-call_true-termination.i [2018-12-09 15:56:26,587 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/data/3772b2a98/20b67d89bcba43f78e38a675c73b8e46/FLAG92f09c06e [2018-12-09 15:56:26,595 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/bin-2019/uautomizer/data/3772b2a98/20b67d89bcba43f78e38a675c73b8e46 [2018-12-09 15:56:26,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:56:26,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:56:26,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:56:26,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:56:26,602 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:56:26,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26, skipping insertion in model container [2018-12-09 15:56:26,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:56:26,622 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:56:26,715 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:56:26,717 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:56:26,727 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:56:26,735 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:56:26,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26 WrapperNode [2018-12-09 15:56:26,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:56:26,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:56:26,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:56:26,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:56:26,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:56:26,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:56:26,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:56:26,756 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:56:26,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... [2018-12-09 15:56:26,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:56:26,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:56:26,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:56:26,803 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:56:26,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:56:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:56:26,953 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:56:26,953 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-09 15:56:26,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:56:26 BoogieIcfgContainer [2018-12-09 15:56:26,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:56:26,953 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 15:56:26,953 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 15:56:26,955 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 15:56:26,956 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:56:26,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 03:56:26" (1/3) ... [2018-12-09 15:56:26,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4080e566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:56:26, skipping insertion in model container [2018-12-09 15:56:26,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:56:26,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:56:26" (2/3) ... [2018-12-09 15:56:26,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4080e566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 03:56:26, skipping insertion in model container [2018-12-09 15:56:26,957 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 15:56:26,957 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:56:26" (3/3) ... [2018-12-09 15:56:26,958 INFO L375 chiAutomizerObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-12-09 15:56:26,989 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 15:56:26,989 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 15:56:26,990 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 15:56:26,990 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 15:56:26,990 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:56:26,990 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:56:26,990 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 15:56:26,990 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:56:26,990 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 15:56:26,998 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-09 15:56:27,010 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-09 15:56:27,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:27,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:27,014 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 15:56:27,014 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 15:56:27,014 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 15:56:27,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states. [2018-12-09 15:56:27,015 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 8 [2018-12-09 15:56:27,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:27,015 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:27,015 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 15:56:27,015 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 15:56:27,020 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 13#L32true assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 17#L12true assume !!(f_~k~0 <= 1073741823); 23#L15-1true [2018-12-09 15:56:27,020 INFO L796 eck$LassoCheckResult]: Loop: 23#L15-1true assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 23#L15-1true [2018-12-09 15:56:27,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:27,023 INFO L82 PathProgramCache]: Analyzing trace with hash 30885, now seen corresponding path program 1 times [2018-12-09 15:56:27,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:27,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:27,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:27,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:27,083 INFO L82 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2018-12-09 15:56:27,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:27,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:27,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:27,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:27,087 INFO L82 PathProgramCache]: Analyzing trace with hash 957453, now seen corresponding path program 1 times [2018-12-09 15:56:27,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:27,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:27,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:27,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:27,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:27,147 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:27,148 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:27,148 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:27,148 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:27,148 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:27,148 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:27,148 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:27,148 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:27,148 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-09 15:56:27,148 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:27,149 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:27,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,185 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:27,288 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:27,288 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:27,291 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:27,291 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:27,296 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:27,296 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:27,312 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:27,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:27,314 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:27,314 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:27,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:27,329 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:27,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:27,347 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:40,720 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 15:56:40,726 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:40,726 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:40,726 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:40,726 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:40,726 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:40,726 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:40,726 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:40,727 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:40,727 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration1_Lasso [2018-12-09 15:56:40,727 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:40,727 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:40,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:40,828 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:40,831 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:40,832 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 [2018-12-09 15:56:40,833 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:40,833 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:40,833 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:40,833 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:40,833 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:40,835 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:40,835 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:40,837 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:40,837 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 [2018-12-09 15:56:40,837 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:40,837 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:40,838 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:40,838 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:40,838 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:40,838 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:40,838 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:40,839 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:40,839 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 [2018-12-09 15:56:40,839 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:40,839 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:40,839 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:40,840 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:40,840 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:40,840 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:40,840 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:40,840 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:40,841 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 [2018-12-09 15:56:40,841 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:40,841 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:40,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:40,841 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:40,844 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:40,844 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:40,879 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:40,890 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-09 15:56:40,890 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:56:40,892 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:40,893 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:40,893 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:40,894 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] [2018-12-09 15:56:40,896 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:40,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:40,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:40,927 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:40,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:40,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:40,949 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 [2018-12-09 15:56:40,950 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states. Second operand 3 states. [2018-12-09 15:56:41,013 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states.. Second operand 3 states. Result 69 states and 99 transitions. Complement of second has 7 states. [2018-12-09 15:56:41,013 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 [2018-12-09 15:56:41,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 15:56:41,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 70 transitions. [2018-12-09 15:56:41,017 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-09 15:56:41,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:41,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 15:56:41,018 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:41,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 70 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 15:56:41,019 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:41,019 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 69 states and 99 transitions. [2018-12-09 15:56:41,023 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 11 [2018-12-09 15:56:41,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 69 states to 23 states and 31 transitions. [2018-12-09 15:56:41,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-12-09 15:56:41,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-09 15:56:41,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2018-12-09 15:56:41,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 15:56:41,028 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2018-12-09 15:56:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2018-12-09 15:56:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2018-12-09 15:56:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 15:56:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-12-09 15:56:41,048 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-12-09 15:56:41,048 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-12-09 15:56:41,048 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 15:56:41,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-12-09 15:56:41,049 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 7 [2018-12-09 15:56:41,049 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:41,049 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:41,049 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-09 15:56:41,049 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 15:56:41,050 INFO L794 eck$LassoCheckResult]: Stem: 146#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 147#L32 assume !(0 != main_~c~1 % 256);f_#in~d := 2;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 149#L12-1 assume !!(f_~k~0 <= 1073741823); 150#L15-4 [2018-12-09 15:56:41,050 INFO L796 eck$LassoCheckResult]: Loop: 150#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 150#L15-4 [2018-12-09 15:56:41,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:41,050 INFO L82 PathProgramCache]: Analyzing trace with hash 32453, now seen corresponding path program 1 times [2018-12-09 15:56:41,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:41,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:41,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:41,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:41,056 INFO L82 PathProgramCache]: Analyzing trace with hash 98, now seen corresponding path program 1 times [2018-12-09 15:56:41,056 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:41,056 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:41,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:41,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:41,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1006110, now seen corresponding path program 1 times [2018-12-09 15:56:41,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:41,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:41,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:41,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:41,092 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:41,092 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:41,093 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:41,093 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:41,093 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:41,093 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:41,093 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:41,093 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:41,093 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-09 15:56:41,093 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:41,093 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:41,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,118 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:41,169 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:41,170 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,173 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,173 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,189 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,189 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,191 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,191 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,206 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,206 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,208 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,209 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,226 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,226 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,228 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,228 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,243 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,243 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,245 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,245 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,260 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,262 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,263 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,279 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,279 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,294 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,296 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,296 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,310 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:41,313 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:41,313 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,329 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:41,329 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:41,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:41,347 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:54,766 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-12-09 15:56:54,773 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:54,773 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:54,773 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:54,773 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:54,773 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:54,773 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:54,773 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:54,773 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:54,773 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration2_Lasso [2018-12-09 15:56:54,773 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:54,774 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:54,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,791 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:54,864 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:54,864 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:54,865 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 [2018-12-09 15:56:54,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,865 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,866 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,866 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,867 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,867 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 [2018-12-09 15:56:54,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,868 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,869 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 [2018-12-09 15:56:54,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,869 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,869 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,869 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,869 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,870 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,870 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,870 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,870 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 [2018-12-09 15:56:54,871 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,871 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,871 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,871 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,871 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,871 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,871 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,872 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,872 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 [2018-12-09 15:56:54,872 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,872 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,873 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,873 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,873 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 [2018-12-09 15:56:54,874 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,874 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:54,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,874 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:54,874 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:54,875 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:54,875 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 [2018-12-09 15:56:54,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:54,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:54,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:54,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:54,877 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:54,877 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:54,897 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:54,904 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:56:54,904 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:56:54,905 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:54,906 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:54,906 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:54,906 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] [2018-12-09 15:56:54,907 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:54,943 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:54,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:54,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:54,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:54,950 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 [2018-12-09 15:56:54,950 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-12-09 15:56:54,974 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 29 states and 40 transitions. Complement of second has 6 states. [2018-12-09 15:56:54,975 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 [2018-12-09 15:56:54,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 15:56:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 15:56:54,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-09 15:56:54,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:54,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-09 15:56:54,976 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:54,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-09 15:56:54,977 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:54,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 40 transitions. [2018-12-09 15:56:54,978 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 10 [2018-12-09 15:56:54,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 24 states and 33 transitions. [2018-12-09 15:56:54,978 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-12-09 15:56:54,978 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-09 15:56:54,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 33 transitions. [2018-12-09 15:56:54,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 15:56:54,979 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 33 transitions. [2018-12-09 15:56:54,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 33 transitions. [2018-12-09 15:56:54,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2018-12-09 15:56:54,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 15:56:54,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2018-12-09 15:56:54,980 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-09 15:56:54,980 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-12-09 15:56:54,980 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-09 15:56:54,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 25 transitions. [2018-12-09 15:56:54,981 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:54,981 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:54,981 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:54,981 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-09 15:56:54,982 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:56:54,982 INFO L794 eck$LassoCheckResult]: Stem: 235#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 236#L32 assume 0 != main_~c~1 % 256;f_#in~d := 1;havoc f_#t~nondet0, f_#t~nondet1, f_#t~nondet2, f_#t~nondet3, f_#t~nondet4, f_~c~0, f_~d, f_~x~0, f_~y~0, f_~k~0, f_~z~0;f_~d := f_#in~d;f_~x~0 := f_#t~nondet0;havoc f_#t~nondet0;f_~y~0 := f_#t~nondet1;havoc f_#t~nondet1;f_~k~0 := f_#t~nondet2;havoc f_#t~nondet2;f_~z~0 := 1; 237#L12 assume !!(f_~k~0 <= 1073741823); 241#L15-1 assume !(f_~z~0 < f_~k~0); 242#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 243#L3 assume !(0 == __VERIFIER_assert_~cond); 230#L20-2 [2018-12-09 15:56:54,982 INFO L796 eck$LassoCheckResult]: Loop: 230#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 231#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 230#L20-2 [2018-12-09 15:56:54,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:54,982 INFO L82 PathProgramCache]: Analyzing trace with hash 920111122, now seen corresponding path program 1 times [2018-12-09 15:56:54,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:54,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:54,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:54,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:54,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:55,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:56:55,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 15:56:55,025 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-09 15:56:55,025 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,025 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 1 times [2018-12-09 15:56:55,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:56:55,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:56:55,047 INFO L87 Difference]: Start difference. First operand 18 states and 25 transitions. cyclomatic complexity: 11 Second operand 4 states. [2018-12-09 15:56:55,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:56:55,072 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2018-12-09 15:56:55,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:56:55,072 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2018-12-09 15:56:55,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:55,073 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2018-12-09 15:56:55,073 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-12-09 15:56:55,073 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-12-09 15:56:55,073 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-12-09 15:56:55,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 15:56:55,074 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-09 15:56:55,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-12-09 15:56:55,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-09 15:56:55,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 15:56:55,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-12-09 15:56:55,075 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-09 15:56:55,075 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-12-09 15:56:55,075 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-09 15:56:55,075 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2018-12-09 15:56:55,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:55,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:55,075 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:55,075 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:55,075 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:56:55,075 INFO L794 eck$LassoCheckResult]: Stem: 284#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 285#L32 assume 0 != main_~c~1 % 256;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; 286#L12 assume !!(f_~k~0 <= 1073741823); 290#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 293#L15-1 assume !(f_~z~0 < f_~k~0); 291#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 292#L3 assume !(0 == __VERIFIER_assert_~cond); 279#L20-2 [2018-12-09 15:56:55,075 INFO L796 eck$LassoCheckResult]: Loop: 279#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 280#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 279#L20-2 [2018-12-09 15:56:55,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1541272662, now seen corresponding path program 1 times [2018-12-09 15:56:55,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,081 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 2 times [2018-12-09 15:56:55,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,085 INFO L82 PathProgramCache]: Analyzing trace with hash 600690225, now seen corresponding path program 1 times [2018-12-09 15:56:55,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,086 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:56:55,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,156 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:55,156 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:55,157 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:55,157 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:55,157 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:55,157 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:55,157 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:55,157 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:55,157 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-09 15:56:55,157 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:55,157 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:55,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,168 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,255 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:55,255 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,257 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,257 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,263 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:55,263 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,279 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:55,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,368 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:56:55,369 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:55,369 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:55,369 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:55,369 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:55,370 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:55,370 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:55,370 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:55,370 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:55,370 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration4_Lasso [2018-12-09 15:56:55,370 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:55,370 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:55,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,482 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:55,482 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:55,482 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 [2018-12-09 15:56:55,482 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:55,482 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:55,482 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:55,483 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:55,483 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:55,483 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:55,486 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:55,487 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 [2018-12-09 15:56:55,487 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:55,487 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:55,487 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:55,488 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:55,489 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:55,489 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:55,496 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:55,500 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:56:55,500 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:56:55,501 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:55,502 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:55,502 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:55,502 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] [2018-12-09 15:56:55,503 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:55,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:55,526 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:55,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:55,541 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 [2018-12-09 15:56:55,541 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-12-09 15:56:55,561 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 24 states and 31 transitions. Complement of second has 6 states. [2018-12-09 15:56:55,561 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 [2018-12-09 15:56:55,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:56:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-09 15:56:55,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-09 15:56:55,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:55,562 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 15:56:55,562 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:55,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-09 15:56:55,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:55,563 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2018-12-09 15:56:55,563 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:55,564 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 23 states and 30 transitions. [2018-12-09 15:56:55,564 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-12-09 15:56:55,564 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-12-09 15:56:55,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 30 transitions. [2018-12-09 15:56:55,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:56:55,564 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 30 transitions. [2018-12-09 15:56:55,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 30 transitions. [2018-12-09 15:56:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2018-12-09 15:56:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-12-09 15:56:55,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2018-12-09 15:56:55,566 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-12-09 15:56:55,566 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 29 transitions. [2018-12-09 15:56:55,566 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-09 15:56:55,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 29 transitions. [2018-12-09 15:56:55,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:55,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:55,566 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:55,567 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:55,567 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:56:55,567 INFO L794 eck$LassoCheckResult]: Stem: 388#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 389#L32 assume !(0 != main_~c~1 % 256);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; 391#L12-1 assume !!(f_~k~0 <= 1073741823); 392#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 393#L15-4 assume !(f_~z~0 < f_~k~0); 386#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 387#L3-3 assume !(0 == __VERIFIER_assert_~cond); 377#L20-5 [2018-12-09 15:56:55,567 INFO L796 eck$LassoCheckResult]: Loop: 377#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 378#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 377#L20-5 [2018-12-09 15:56:55,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,567 INFO L82 PathProgramCache]: Analyzing trace with hash -91683318, now seen corresponding path program 1 times [2018-12-09 15:56:55,567 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,567 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,575 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 1 times [2018-12-09 15:56:55,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:55,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647473, now seen corresponding path program 1 times [2018-12-09 15:56:55,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:55,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:55,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:55,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:55,656 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:55,657 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:55,657 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:55,657 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:55,657 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:55,657 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:55,657 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:55,657 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:55,657 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-09 15:56:55,657 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:55,657 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:55,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,661 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,670 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,753 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:55,753 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,756 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,758 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:55,758 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,773 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,773 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,778 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:55,778 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,793 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,793 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,798 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:55,798 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:55,813 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:55,830 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:55,830 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:55,883 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:56:55,884 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:55,885 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:55,885 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:55,885 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:55,885 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:55,885 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:55,885 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:55,885 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:55,885 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration5_Lasso [2018-12-09 15:56:55,885 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:55,885 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:55,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,888 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,929 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:55,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,022 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:56,022 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:56,023 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 15:56:56,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,023 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,023 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,024 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 [2018-12-09 15:56:56,024 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,024 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,024 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,025 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:56,025 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:56,026 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,026 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 [2018-12-09 15:56:56,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,027 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:56,027 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:56,029 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,029 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 [2018-12-09 15:56:56,030 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,030 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,030 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,030 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,030 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,030 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,030 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,031 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,031 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 [2018-12-09 15:56:56,031 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,031 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,031 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,031 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,031 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,032 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,032 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,032 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,033 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 [2018-12-09 15:56:56,033 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,033 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,033 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,033 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,033 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,034 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,034 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,034 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,034 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 [2018-12-09 15:56:56,034 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,034 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,035 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,035 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,035 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:56,035 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:56,037 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,037 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 [2018-12-09 15:56:56,038 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,038 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,038 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,038 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,038 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,038 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,038 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,039 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 [2018-12-09 15:56:56,039 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,039 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:56,039 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,039 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,039 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,039 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:56,039 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:56,040 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:56,040 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 [2018-12-09 15:56:56,040 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:56,040 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:56,040 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:56,040 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:56,041 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:56,041 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:56,044 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:56,046 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 15:56:56,046 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 15:56:56,046 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:56,047 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:56,047 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:56,047 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] [2018-12-09 15:56:56,049 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:56,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:56,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:56,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:56,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:56,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:56,102 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 [2018-12-09 15:56:56,102 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12 Second operand 4 states. [2018-12-09 15:56:56,119 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 29 transitions. cyclomatic complexity: 12. Second operand 4 states. Result 28 states and 37 transitions. Complement of second has 6 states. [2018-12-09 15:56:56,119 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 [2018-12-09 15:56:56,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:56:56,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-12-09 15:56:56,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-09 15:56:56,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:56,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-09 15:56:56,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:56,120 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-09 15:56:56,120 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:56,120 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 37 transitions. [2018-12-09 15:56:56,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:56,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 27 states and 36 transitions. [2018-12-09 15:56:56,121 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-09 15:56:56,121 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-09 15:56:56,121 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 36 transitions. [2018-12-09 15:56:56,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:56:56,121 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 36 transitions. [2018-12-09 15:56:56,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 36 transitions. [2018-12-09 15:56:56,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-12-09 15:56:56,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-09 15:56:56,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2018-12-09 15:56:56,122 INFO L728 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-12-09 15:56:56,122 INFO L608 BuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2018-12-09 15:56:56,122 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-12-09 15:56:56,122 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2018-12-09 15:56:56,123 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-12-09 15:56:56,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:56,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:56,123 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:56,123 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:56:56,123 INFO L794 eck$LassoCheckResult]: Stem: 504#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 500#L32 assume 0 != main_~c~1 % 256;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; 501#L12 assume !!(f_~k~0 <= 1073741823); 507#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 511#L15-1 assume !(f_~z~0 < f_~k~0); 508#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 509#L3 assume !(0 == __VERIFIER_assert_~cond); 510#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 495#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-12-09 15:56:56,123 INFO L796 eck$LassoCheckResult]: Loop: 497#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; 492#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 493#L20 assume 0 != f_~c~0 % 256; 497#L21 [2018-12-09 15:56:56,123 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:56,123 INFO L82 PathProgramCache]: Analyzing trace with hash 600690221, now seen corresponding path program 1 times [2018-12-09 15:56:56,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:56,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:56,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:56,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:56,128 INFO L82 PathProgramCache]: Analyzing trace with hash 74319, now seen corresponding path program 1 times [2018-12-09 15:56:56,129 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:56,129 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:56,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:56,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:56,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304093, now seen corresponding path program 1 times [2018-12-09 15:56:56,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:56,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:56,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:56,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:56,151 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:56,151 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:56,151 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:56,151 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:56,152 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:56,152 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:56,152 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:56,152 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:56,152 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Loop [2018-12-09 15:56:56,152 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:56,152 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:56,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,161 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,221 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:56,221 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,223 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,239 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,239 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,250 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,250 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,264 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,264 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,274 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,274 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,289 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,289 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,305 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:56,305 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,317 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,317 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] [2018-12-09 15:56:56,407 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:56,408 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:56,408 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:56,408 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:56,408 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:56,408 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:56,408 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:56,408 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:56,408 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-09 15:56:56,408 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:56,408 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:56,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,413 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,421 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,539 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:56,539 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,540 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,556 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:56,556 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,567 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,567 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,582 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,582 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,588 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,588 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=-128, ULTIMATE.start_f_~y~0=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,603 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,603 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,608 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,608 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~1=0} Honda state: {ULTIMATE.start_main_~c~1=128} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,623 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,623 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,625 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,625 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,640 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,642 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,642 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,657 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,657 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,659 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,659 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,675 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,675 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,690 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,692 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,692 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,707 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,707 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:56,708 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,723 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:56,723 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:56,739 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:56,739 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:56,872 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:56:56,873 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:56,873 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:56,873 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:56,873 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:56,873 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:56,873 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:56,873 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:56,873 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:56,873 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration6_Lasso [2018-12-09 15:56:56,874 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:56,874 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:56,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,882 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,897 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:56,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,019 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:57,019 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:57,019 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 [2018-12-09 15:56:57,019 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,019 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,020 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,020 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,023 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 15:56:57,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,023 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,023 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,024 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,024 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,027 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,027 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 [2018-12-09 15:56:57,027 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,027 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:57,027 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,027 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,027 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,028 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:57,028 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:57,028 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,028 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 [2018-12-09 15:56:57,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,028 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,028 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,029 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,029 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,029 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,031 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,031 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 [2018-12-09 15:56:57,032 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,032 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,032 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,032 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,032 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,032 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,036 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:57,040 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-09 15:56:57,040 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 15:56:57,040 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:57,041 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:57,041 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:57,041 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] [2018-12-09 15:56:57,042 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:57,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:57,061 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:57,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:57,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:57,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:57,079 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 [2018-12-09 15:56:57,079 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15 Second operand 5 states. [2018-12-09 15:56:57,106 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 15. Second operand 5 states. Result 36 states and 48 transitions. Complement of second has 7 states. [2018-12-09 15:56:57,106 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 [2018-12-09 15:56:57,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 15:56:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-12-09 15:56:57,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-09 15:56:57,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:57,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-12-09 15:56:57,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:57,107 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-12-09 15:56:57,107 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:57,107 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 48 transitions. [2018-12-09 15:56:57,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-09 15:56:57,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 32 states and 43 transitions. [2018-12-09 15:56:57,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-09 15:56:57,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-09 15:56:57,108 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-12-09 15:56:57,108 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:56:57,108 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-12-09 15:56:57,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-12-09 15:56:57,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-12-09 15:56:57,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-12-09 15:56:57,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2018-12-09 15:56:57,109 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-12-09 15:56:57,109 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2018-12-09 15:56:57,109 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-12-09 15:56:57,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 42 transitions. [2018-12-09 15:56:57,110 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-12-09 15:56:57,110 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:57,110 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:57,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:57,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 15:56:57,110 INFO L794 eck$LassoCheckResult]: Stem: 639#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 640#L32 assume !(0 != main_~c~1 % 256);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; 642#L12-1 assume !!(f_~k~0 <= 1073741823); 643#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 644#L15-4 assume !(f_~z~0 < f_~k~0); 635#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 636#L3-3 assume !(0 == __VERIFIER_assert_~cond); 638#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 623#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-12-09 15:56:57,110 INFO L796 eck$LassoCheckResult]: Loop: 624#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; 619#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 620#L20-3 assume 0 != f_~c~0 % 256; 624#L21-1 [2018-12-09 15:56:57,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:57,110 INFO L82 PathProgramCache]: Analyzing trace with hash 2086647469, now seen corresponding path program 1 times [2018-12-09 15:56:57,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:57,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:57,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:57,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:57,115 INFO L82 PathProgramCache]: Analyzing trace with hash 122976, now seen corresponding path program 1 times [2018-12-09 15:56:57,115 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:57,115 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:57,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:57,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,118 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:57,118 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800140, now seen corresponding path program 1 times [2018-12-09 15:56:57,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:57,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:57,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:57,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:57,138 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:57,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:57,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:57,139 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:57,139 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:57,139 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:57,139 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:57,139 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:57,139 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Loop [2018-12-09 15:56:57,139 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:57,139 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:57,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,142 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,199 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:57,199 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,201 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,201 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:57,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,224 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,225 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,239 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,246 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,246 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,275 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,275 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,285 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,286 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Honda state: {ULTIMATE.start_f_#t~nondet4=247, ULTIMATE.start_f_~y~0=247} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2018-12-09 15:56:57,373 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:57,373 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:57,374 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:57,374 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:57,374 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:57,374 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:57,374 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:57,374 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:57,374 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-09 15:56:57,374 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:57,374 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:57,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,497 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:57,497 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,498 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,498 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,508 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,508 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,523 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,523 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,525 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,525 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,544 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,545 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,559 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,561 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,561 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,575 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,591 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:57,591 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,604 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,604 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,619 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,620 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,620 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,635 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,641 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,641 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,657 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,658 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,659 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,675 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,675 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,689 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,691 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:57,691 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,705 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:57,705 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:57,722 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:57,722 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:57,852 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:56:57,853 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:57,853 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:57,853 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:57,853 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:57,853 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:57,853 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:57,853 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:57,853 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:57,853 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration7_Lasso [2018-12-09 15:56:57,853 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:57,853 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:57,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,857 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:57,986 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:57,986 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:57,986 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 [2018-12-09 15:56:57,986 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,986 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,987 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,987 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,988 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,989 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 [2018-12-09 15:56:57,989 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,989 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:57,989 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,989 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,989 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,989 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:57,990 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:57,990 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,990 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 [2018-12-09 15:56:57,990 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,990 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,991 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,991 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,991 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,991 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,993 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,993 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 [2018-12-09 15:56:57,993 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,993 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:57,993 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,993 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,994 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:57,994 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:57,994 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,994 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 [2018-12-09 15:56:57,995 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,995 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,995 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,995 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:57,996 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:57,996 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:57,998 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:57,999 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 [2018-12-09 15:56:57,999 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:57,999 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:57,999 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:57,999 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:57,999 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,000 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:58,000 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:58,000 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:58,000 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 [2018-12-09 15:56:58,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,000 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:56:58,001 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,001 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,001 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,001 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:56:58,001 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:56:58,001 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:58,002 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-09 15:56:58,002 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,002 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,002 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,002 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,003 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:58,003 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:58,006 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:58,007 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 [2018-12-09 15:56:58,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,007 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,007 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,007 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,008 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:58,008 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:58,011 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:58,012 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 [2018-12-09 15:56:58,012 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,012 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,012 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,012 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,013 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:58,013 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:58,017 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:58,021 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:56:58,021 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-09 15:56:58,021 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:58,022 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2018-12-09 15:56:58,022 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:58,022 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~x~0) = 1*ULTIMATE.start_f_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_f_~d - 2 >= 0, 1*ULTIMATE.start_f_~x~0 >= 0] [2018-12-09 15:56:58,026 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2018-12-09 15:56:58,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:58,048 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:58,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:58,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:58,092 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 [2018-12-09 15:56:58,092 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18 Second operand 5 states. [2018-12-09 15:56:58,117 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 31 states and 42 transitions. cyclomatic complexity: 18. Second operand 5 states. Result 41 states and 55 transitions. Complement of second has 7 states. [2018-12-09 15:56:58,117 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 [2018-12-09 15:56:58,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-09 15:56:58,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 28 transitions. [2018-12-09 15:56:58,117 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 3 letters. [2018-12-09 15:56:58,117 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 12 letters. Loop has 3 letters. [2018-12-09 15:56:58,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,118 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 28 transitions. Stem has 9 letters. Loop has 6 letters. [2018-12-09 15:56:58,118 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,118 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 55 transitions. [2018-12-09 15:56:58,118 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:56:58,119 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 37 states and 50 transitions. [2018-12-09 15:56:58,119 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2018-12-09 15:56:58,119 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-12-09 15:56:58,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 50 transitions. [2018-12-09 15:56:58,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:56:58,119 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 50 transitions. [2018-12-09 15:56:58,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 50 transitions. [2018-12-09 15:56:58,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-12-09 15:56:58,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-12-09 15:56:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2018-12-09 15:56:58,121 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-12-09 15:56:58,121 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-12-09 15:56:58,121 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-12-09 15:56:58,121 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 49 transitions. [2018-12-09 15:56:58,121 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:56:58,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:58,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:58,122 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:58,122 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:56:58,122 INFO L794 eck$LassoCheckResult]: Stem: 786#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 787#L32 assume 0 != main_~c~1 % 256;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; 788#L12 assume !!(f_~k~0 <= 1073741823); 793#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 796#L15-1 assume !(f_~z~0 < f_~k~0); 794#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 795#L3 assume !(0 == __VERIFIER_assert_~cond); 772#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 774#L20 assume 0 != f_~c~0 % 256; 784#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; 775#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 776#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-12-09 15:56:58,122 INFO L796 eck$LassoCheckResult]: Loop: 778#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 777#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 778#L20-2 [2018-12-09 15:56:58,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1966304089, now seen corresponding path program 1 times [2018-12-09 15:56:58,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:58,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 3 times [2018-12-09 15:56:58,131 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:58,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,134 INFO L82 PathProgramCache]: Analyzing trace with hash 167381998, now seen corresponding path program 2 times [2018-12-09 15:56:58,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,135 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:56:58,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,239 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:58,240 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:58,240 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:58,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:58,240 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:58,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:58,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:58,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:58,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-09 15:56:58,240 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:58,240 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:58,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,250 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,359 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:58,359 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:58,361 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:58,361 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:58,387 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:58,387 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:58,723 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:56:58,724 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:58,724 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:58,724 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:58,724 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:58,724 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:56:58,724 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:58,725 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:58,725 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:58,725 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration8_Lasso [2018-12-09 15:56:58,725 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:58,725 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:58,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:58,866 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:58,866 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:56:58,866 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 [2018-12-09 15:56:58,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,867 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,867 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,867 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:58,867 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:58,868 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:56:58,869 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 [2018-12-09 15:56:58,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:56:58,869 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:56:58,869 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:56:58,869 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:56:58,869 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:56:58,870 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:56:58,872 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:56:58,875 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:56:58,875 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-09 15:56:58,875 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:56:58,876 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:56:58,876 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:56:58,876 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] [2018-12-09 15:56:58,883 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:56:58,903 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:58,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:56:58,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:56:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:56:58,916 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 [2018-12-09 15:56:58,917 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21 Second operand 4 states. [2018-12-09 15:56:58,934 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 36 states and 49 transitions. cyclomatic complexity: 21. Second operand 4 states. Result 54 states and 71 transitions. Complement of second has 6 states. [2018-12-09 15:56:58,934 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 [2018-12-09 15:56:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:56:58,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 15:56:58,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-12-09 15:56:58,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:56:58,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-09 15:56:58,935 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:56:58,935 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 71 transitions. [2018-12-09 15:56:58,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:56:58,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 46 states and 61 transitions. [2018-12-09 15:56:58,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2018-12-09 15:56:58,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2018-12-09 15:56:58,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 61 transitions. [2018-12-09 15:56:58,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:56:58,936 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 61 transitions. [2018-12-09 15:56:58,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 61 transitions. [2018-12-09 15:56:58,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2018-12-09 15:56:58,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 15:56:58,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 59 transitions. [2018-12-09 15:56:58,937 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-09 15:56:58,937 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 59 transitions. [2018-12-09 15:56:58,937 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-12-09 15:56:58,937 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 59 transitions. [2018-12-09 15:56:58,938 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:56:58,938 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:56:58,938 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:56:58,938 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:56:58,938 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:56:58,938 INFO L794 eck$LassoCheckResult]: Stem: 953#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 954#L32 assume !(0 != main_~c~1 % 256);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; 956#L12-1 assume !!(f_~k~0 <= 1073741823); 958#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 959#L15-4 assume !(f_~z~0 < f_~k~0); 948#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 949#L3-3 assume !(0 == __VERIFIER_assert_~cond); 957#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 964#L20-3 assume 0 != f_~c~0 % 256; 945#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; 946#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 968#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-12-09 15:56:58,938 INFO L796 eck$LassoCheckResult]: Loop: 930#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 931#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 930#L20-5 [2018-12-09 15:56:58,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,938 INFO L82 PathProgramCache]: Analyzing trace with hash -2041800136, now seen corresponding path program 1 times [2018-12-09 15:56:58,938 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,939 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:56:58,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,944 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 2 times [2018-12-09 15:56:58,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:56:58,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:56:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash 630126431, now seen corresponding path program 2 times [2018-12-09 15:56:58,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:56:58,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:56:58,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,947 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:56:58,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:56:58,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:58,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:56:59,034 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:56:59,034 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:56:59,034 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:56:59,034 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:56:59,034 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:56:59,034 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:56:59,034 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:56:59,034 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:56:59,034 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-09 15:56:59,034 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:56:59,034 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:56:59,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,047 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,052 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,055 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,056 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,057 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,059 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:56:59,163 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:56:59,163 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:59,165 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:59,165 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:59,173 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:59,173 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:59,188 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:59,188 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:56:59,193 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:56:59,193 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:59,207 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:56:59,207 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:56:59,223 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:56:59,223 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:00,195 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:57:00,196 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:57:00,197 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:57:00,197 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:57:00,197 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:57:00,197 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:57:00,197 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:57:00,197 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:57:00,197 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:57:00,197 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration9_Lasso [2018-12-09 15:57:00,197 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:57:00,197 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:57:00,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,223 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,326 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:57:00,326 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:57:00,327 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 [2018-12-09 15:57:00,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:00,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:00,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:00,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:00,327 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:00,327 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:00,329 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:00,329 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 [2018-12-09 15:57:00,329 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:00,330 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:00,330 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:00,330 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:00,330 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:00,330 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:00,330 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:00,330 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:00,331 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 [2018-12-09 15:57:00,331 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:00,331 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:00,331 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:00,331 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:00,332 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:00,332 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:00,337 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:57:00,342 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:57:00,342 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 15:57:00,343 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:57:00,343 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:57:00,344 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:57:00,344 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] [2018-12-09 15:57:00,345 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:57:00,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:00,363 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:00,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:00,374 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 [2018-12-09 15:57:00,374 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25 Second operand 4 states. [2018-12-09 15:57:00,406 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 44 states and 59 transitions. cyclomatic complexity: 25. Second operand 4 states. Result 62 states and 81 transitions. Complement of second has 6 states. [2018-12-09 15:57:00,406 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 [2018-12-09 15:57:00,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:00,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 15:57:00,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 2 letters. [2018-12-09 15:57:00,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:00,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:00,406 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:00,406 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 12 letters. Loop has 4 letters. [2018-12-09 15:57:00,407 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:00,407 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2018-12-09 15:57:00,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:57:00,407 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 54 states and 71 transitions. [2018-12-09 15:57:00,407 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2018-12-09 15:57:00,407 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2018-12-09 15:57:00,408 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 71 transitions. [2018-12-09 15:57:00,408 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:57:00,408 INFO L705 BuchiCegarLoop]: Abstraction has 54 states and 71 transitions. [2018-12-09 15:57:00,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 71 transitions. [2018-12-09 15:57:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 52. [2018-12-09 15:57:00,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 15:57:00,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-12-09 15:57:00,409 INFO L728 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-12-09 15:57:00,409 INFO L608 BuchiCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-12-09 15:57:00,409 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-12-09 15:57:00,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 69 transitions. [2018-12-09 15:57:00,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-12-09 15:57:00,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:57:00,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:57:00,410 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:57:00,410 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:57:00,410 INFO L794 eck$LassoCheckResult]: Stem: 1134#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1135#L32 assume 0 != main_~c~1 % 256;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; 1136#L12 assume !!(f_~k~0 <= 1073741823); 1140#L15-1 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1143#L15-1 assume !(f_~z~0 < f_~k~0); 1141#L15-2 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1142#L3 assume !(0 == __VERIFIER_assert_~cond); 1119#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1120#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1159#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1158#L20 assume 0 != f_~c~0 % 256; 1152#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; 1150#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1146#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-12-09 15:57:00,410 INFO L796 eck$LassoCheckResult]: Loop: 1148#L20-2 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1149#L20 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1148#L20-2 [2018-12-09 15:57:00,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:00,411 INFO L82 PathProgramCache]: Analyzing trace with hash 277368448, now seen corresponding path program 3 times [2018-12-09 15:57:00,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:00,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:00,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,411 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:00,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:00,416 INFO L82 PathProgramCache]: Analyzing trace with hash 2248, now seen corresponding path program 4 times [2018-12-09 15:57:00,416 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:00,416 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:00,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,416 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:00,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:00,418 INFO L82 PathProgramCache]: Analyzing trace with hash 263107463, now seen corresponding path program 4 times [2018-12-09 15:57:00,418 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:00,418 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:00,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,419 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:00,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:00,523 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:57:00,523 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:57:00,524 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:57:00,524 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:57:00,524 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:57:00,524 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:57:00,524 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:57:00,524 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:57:00,524 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-09 15:57:00,524 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:57:00,524 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:57:00,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,545 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:00,637 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:57:00,637 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:00,639 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:00,639 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:00,646 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:00,646 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:00,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:00,661 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:00,663 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:00,663 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:00,677 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:00,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:00,692 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:00,692 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:00,695 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:00,695 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:00,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:57:00,712 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,347 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:57:01,349 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:57:01,349 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:57:01,349 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:57:01,349 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:57:01,349 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:57:01,349 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:57:01,349 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:57:01,349 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:57:01,349 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration10_Lasso [2018-12-09 15:57:01,349 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:57:01,349 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:57:01,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,501 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:57:01,501 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:57:01,502 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 [2018-12-09 15:57:01,502 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:01,502 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:01,502 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:01,502 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:01,502 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:01,502 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:01,502 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:01,502 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:01,503 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 [2018-12-09 15:57:01,503 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:01,503 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:01,503 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:01,503 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:01,503 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:01,503 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:01,504 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:01,504 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 [2018-12-09 15:57:01,505 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:01,505 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:01,505 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:01,505 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:01,505 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:01,505 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:01,506 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:01,506 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 [2018-12-09 15:57:01,506 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:01,506 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:01,506 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:01,506 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:01,507 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:01,507 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:01,510 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:57:01,512 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-09 15:57:01,513 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-09 15:57:01,513 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:57:01,513 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:57:01,514 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:57:01,514 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] [2018-12-09 15:57:01,515 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:57:01,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:01,553 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 [2018-12-09 15:57:01,553 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-09 15:57:01,576 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-12-09 15:57:01,576 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 [2018-12-09 15:57:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 15:57:01,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:01,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:01,577 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:57:01,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,595 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:01,604 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 [2018-12-09 15:57:01,604 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-09 15:57:01,619 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 60 states and 77 transitions. Complement of second has 6 states. [2018-12-09 15:57:01,620 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 [2018-12-09 15:57:01,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:01,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2018-12-09 15:57:01,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:01,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:01,620 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:57:01,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:01,637 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:01,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:01,645 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 [2018-12-09 15:57:01,645 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29 Second operand 4 states. [2018-12-09 15:57:01,664 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 52 states and 69 transitions. cyclomatic complexity: 29. Second operand 4 states. Result 63 states and 82 transitions. Complement of second has 5 states. [2018-12-09 15:57:01,665 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 [2018-12-09 15:57:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-12-09 15:57:01,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:01,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:01,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 15:57:01,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:01,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-09 15:57:01,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:01,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 63 states and 82 transitions. [2018-12-09 15:57:01,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 15:57:01,666 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 63 states to 27 states and 35 transitions. [2018-12-09 15:57:01,666 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-12-09 15:57:01,666 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-12-09 15:57:01,666 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 35 transitions. [2018-12-09 15:57:01,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-09 15:57:01,666 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-09 15:57:01,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 35 transitions. [2018-12-09 15:57:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-12-09 15:57:01,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-09 15:57:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2018-12-09 15:57:01,667 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-09 15:57:01,667 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 35 transitions. [2018-12-09 15:57:01,667 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-12-09 15:57:01,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 35 transitions. [2018-12-09 15:57:01,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-09 15:57:01,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 15:57:01,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 15:57:01,668 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:57:01,668 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-09 15:57:01,668 INFO L794 eck$LassoCheckResult]: Stem: 1547#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet5, main_~c~1;main_~c~1 := main_#t~nondet5;havoc main_#t~nondet5; 1548#L32 assume !(0 != main_~c~1 % 256);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; 1549#L12-1 assume !!(f_~k~0 <= 1073741823); 1550#L15-4 assume !!(f_~z~0 < f_~k~0);f_~z~0 := 2 * f_~z~0; 1551#L15-4 assume !(f_~z~0 < f_~k~0); 1545#L15-5 __VERIFIER_assert_#in~cond := (if f_~z~0 >= 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 1546#L3-3 assume !(0 == __VERIFIER_assert_~cond); 1540#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1542#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1562#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1559#L20-3 assume 0 != f_~c~0 % 256; 1560#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; 1565#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1563#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-12-09 15:57:01,668 INFO L796 eck$LassoCheckResult]: Loop: 1553#L20-5 assume !!(f_~x~0 > 0 && f_~y~0 > 0);f_~c~0 := f_#t~nondet3;havoc f_#t~nondet3; 1552#L20-3 assume !(0 != f_~c~0 % 256);f_~y~0 := f_~y~0 - f_~d; 1553#L20-5 [2018-12-09 15:57:01,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,668 INFO L82 PathProgramCache]: Analyzing trace with hash 740112881, now seen corresponding path program 3 times [2018-12-09 15:57:01,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:01,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:01,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,669 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:01,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,674 INFO L82 PathProgramCache]: Analyzing trace with hash 3816, now seen corresponding path program 3 times [2018-12-09 15:57:01,674 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:01,674 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:01,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,674 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:01,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:01,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1716089640, now seen corresponding path program 4 times [2018-12-09 15:57:01,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 15:57:01,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 15:57:01,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,677 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 15:57:01,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:57:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:57:01,782 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:57:01,782 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:57:01,782 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:57:01,782 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:57:01,783 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-09 15:57:01,783 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:57:01,783 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:57:01,783 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:57:01,783 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-12-09 15:57:01,783 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:57:01,783 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:57:01,783 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:01,895 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:57:01,895 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,896 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,896 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,899 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,899 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,916 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,916 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,924 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,924 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=0, ULTIMATE.start_f_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,939 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,939 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,943 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,943 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,958 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,958 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,959 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,959 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,974 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,974 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,988 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,988 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:01,990 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:01,990 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:01,992 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:01,992 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,006 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:02,006 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:02,008 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:02,008 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,022 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:02,022 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:02,024 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:02,024 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,038 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:02,038 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:02,040 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:02,040 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,054 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:02,054 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:02,057 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-09 15:57:02,057 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_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-09 15:57:02,071 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dea4490b-ddaf-48a8-acfd-c95023d13b66/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 [2018-12-09 15:57:02,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-09 15:57:02,087 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-09 15:57:02,643 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-09 15:57:02,645 INFO L216 LassoAnalysis]: Preferences: [2018-12-09 15:57:02,645 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-09 15:57:02,645 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-09 15:57:02,645 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-09 15:57:02,645 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-09 15:57:02,645 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-09 15:57:02,645 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-09 15:57:02,645 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-09 15:57:02,645 INFO L131 ssoRankerPreferences]: Filename of dumped script: trex01_false-unreach-call_true-termination.i_Iteration11_Lasso [2018-12-09 15:57:02,645 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-09 15:57:02,645 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-09 15:57:02,646 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,649 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,659 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-09 15:57:02,767 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-09 15:57:02,767 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-09 15:57:02,767 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 [2018-12-09 15:57:02,768 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,768 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,768 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,768 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,768 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,768 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,769 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,769 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 [2018-12-09 15:57:02,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,770 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,770 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,771 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,771 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 [2018-12-09 15:57:02,771 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,772 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:02,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,772 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:02,772 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:02,772 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,772 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 [2018-12-09 15:57:02,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,773 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,773 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,773 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,773 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,774 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 [2018-12-09 15:57:02,774 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,774 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:02,774 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,774 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,774 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,774 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:02,774 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:02,774 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,774 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 [2018-12-09 15:57:02,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,775 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,775 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,775 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,775 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,775 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,776 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,776 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 [2018-12-09 15:57:02,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,776 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:02,776 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,776 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,777 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:02,777 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:02,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,777 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 [2018-12-09 15:57:02,777 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,777 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:02,777 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,777 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,777 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,778 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:02,778 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:02,778 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,778 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 [2018-12-09 15:57:02,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,778 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,779 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,779 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,779 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 [2018-12-09 15:57:02,780 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,780 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-09 15:57:02,780 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,780 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,780 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,780 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-09 15:57:02,780 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-09 15:57:02,780 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-09 15:57:02,780 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 [2018-12-09 15:57:02,781 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-09 15:57:02,781 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-09 15:57:02,781 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-09 15:57:02,781 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-09 15:57:02,781 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-09 15:57:02,781 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-09 15:57:02,784 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-09 15:57:02,787 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-09 15:57:02,787 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-12-09 15:57:02,787 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-09 15:57:02,787 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-09 15:57:02,788 INFO L518 LassoAnalysis]: Proved termination. [2018-12-09 15:57:02,788 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] [2018-12-09 15:57:02,794 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-09 15:57:02,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:02,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,817 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:02,829 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 [2018-12-09 15:57:02,829 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-09 15:57:02,847 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-12-09 15:57:02,847 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 [2018-12-09 15:57:02,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:02,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-09 15:57:02,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:02,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:02,848 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:57:02,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:02,877 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 [2018-12-09 15:57:02,877 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-09 15:57:02,892 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 35 states and 43 transitions. Complement of second has 6 states. [2018-12-09 15:57:02,892 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 [2018-12-09 15:57:02,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:02,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-12-09 15:57:02,893 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:02,893 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:02,893 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-09 15:57:02,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:57:02,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:57:02,914 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 15:57:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 15:57:02,924 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 [2018-12-09 15:57:02,924 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14 Second operand 4 states. [2018-12-09 15:57:02,937 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 27 states and 35 transitions. cyclomatic complexity: 14. Second operand 4 states. Result 38 states and 48 transitions. Complement of second has 5 states. [2018-12-09 15:57:02,937 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 [2018-12-09 15:57:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-09 15:57:02,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-12-09 15:57:02,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 2 letters. [2018-12-09 15:57:02,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:02,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 16 letters. Loop has 2 letters. [2018-12-09 15:57:02,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:02,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 4 letters. [2018-12-09 15:57:02,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-09 15:57:02,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2018-12-09 15:57:02,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 15:57:02,939 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-09 15:57:02,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-09 15:57:02,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 15:57:02,939 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-12-09 15:57:02,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-09 15:57:02,939 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-09 15:57:02,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-09 15:57:02,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 03:57:02 BoogieIcfgContainer [2018-12-09 15:57:02,945 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 15:57:02,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:57:02,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:57:02,945 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:57:02,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:56:26" (3/4) ... [2018-12-09 15:57:02,948 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 15:57:02,948 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:57:02,949 INFO L168 Benchmark]: Toolchain (without parser) took 36350.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 194.5 MB). Free memory was 953.3 MB in the beginning and 878.6 MB in the end (delta: 74.7 MB). Peak memory consumption was 269.2 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:02,950 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:02,950 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.30 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:02,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:02,951 INFO L168 Benchmark]: Boogie Preprocessor took 46.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:02,951 INFO L168 Benchmark]: RCFGBuilder took 150.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:02,951 INFO L168 Benchmark]: BuchiAutomizer took 35991.37 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.1 GB in the beginning and 878.6 MB in the end (delta: 215.0 MB). Peak memory consumption was 299.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:57:02,952 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 1.2 GB. Free memory is still 878.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:57:02,953 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.30 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.94 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -165.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 150.47 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35991.37 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 84.4 MB). Free memory was 1.1 GB in the beginning and 878.6 MB in the end (delta: 215.0 MB). Peak memory consumption was 299.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.36 ms. Allocated memory is still 1.2 GB. Free memory is still 878.6 MB. 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 4 locations. One deterministic module has affine ranking function y and consists of 4 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 and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.9s and 12 iterations. TraceHistogramMax:3. Analysis of lassos took 34.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 4. Minimization of nondet autom 7. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 20 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 9. Nontrivial modules had stage [8, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 247 SDtfs, 365 SDslu, 92 SDs, 0 SdLazy, 164 SolverSat, 69 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: 52ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 53 LassoNonterminationAnalysisSatUnbounded: 4 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 30.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...