./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4d47290c22ee8ca606b2e1fe494335758b7c5275 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:19:10,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:19:10,280 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:19:10,288 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:19:10,288 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:19:10,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:19:10,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:19:10,290 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:19:10,291 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:19:10,292 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:19:10,293 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:19:10,293 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:19:10,294 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:19:10,294 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:19:10,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:19:10,296 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:19:10,296 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:19:10,297 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:19:10,299 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:19:10,300 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:19:10,300 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:19:10,301 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:19:10,303 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:19:10,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:19:10,303 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:19:10,304 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:19:10,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:19:10,305 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:19:10,306 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:19:10,306 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:19:10,307 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:19:10,307 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:19:10,307 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:19:10,307 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:19:10,308 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:19:10,309 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:19:10,309 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 06:19:10,320 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:19:10,320 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:19:10,321 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:19:10,321 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:19:10,321 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 06:19:10,322 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 06:19:10,322 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 06:19:10,322 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 06:19:10,322 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 06:19:10,322 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 06:19:10,322 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 06:19:10,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:19:10,323 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 06:19:10,324 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 06:19:10,324 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:19:10,324 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:19:10,324 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 06:19:10,324 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:19:10,324 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 06:19:10,324 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 06:19:10,325 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 06:19:10,325 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_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d47290c22ee8ca606b2e1fe494335758b7c5275 [2018-11-10 06:19:10,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:19:10,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:19:10,358 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:19:10,359 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:19:10,360 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:19:10,360 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c [2018-11-10 06:19:10,406 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/data/f47e77ac5/00956985e6024b29810db3f7b58ae844/FLAGa4d963369 [2018-11-10 06:19:10,739 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:19:10,739 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c [2018-11-10 06:19:10,743 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/data/f47e77ac5/00956985e6024b29810db3f7b58ae844/FLAGa4d963369 [2018-11-10 06:19:10,754 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/data/f47e77ac5/00956985e6024b29810db3f7b58ae844 [2018-11-10 06:19:10,756 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:19:10,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 06:19:10,757 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:19:10,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:19:10,761 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:19:10,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@677189b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10, skipping insertion in model container [2018-11-10 06:19:10,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:19:10,783 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:19:10,881 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:19:10,883 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:19:10,894 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:19:10,902 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:19:10,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10 WrapperNode [2018-11-10 06:19:10,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:19:10,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 06:19:10,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 06:19:10,903 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 06:19:10,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 06:19:10,922 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:19:10,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:19:10,922 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:19:10,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... [2018-11-10 06:19:10,934 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:19:10,935 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:19:10,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:19:10,935 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:19:10,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:19:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:19:11,109 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:19:11,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:19:11 BoogieIcfgContainer [2018-11-10 06:19:11,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:19:11,110 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 06:19:11,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 06:19:11,113 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 06:19:11,113 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:19:11,113 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 06:19:10" (1/3) ... [2018-11-10 06:19:11,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3281ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:19:11, skipping insertion in model container [2018-11-10 06:19:11,114 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:19:11,114 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:19:10" (2/3) ... [2018-11-10 06:19:11,114 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3281ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 06:19:11, skipping insertion in model container [2018-11-10 06:19:11,114 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 06:19:11,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:19:11" (3/3) ... [2018-11-10 06:19:11,116 INFO L375 chiAutomizerObserver]: Analyzing ICFG Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c [2018-11-10 06:19:11,155 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:19:11,155 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 06:19:11,155 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 06:19:11,155 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 06:19:11,155 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:19:11,155 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:19:11,156 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 06:19:11,156 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:19:11,156 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 06:19:11,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 06:19:11,178 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:19:11,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:19:11,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:19:11,183 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 06:19:11,183 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 06:19:11,183 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 06:19:11,183 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-10 06:19:11,184 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:19:11,184 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:19:11,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:19:11,185 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 06:19:11,185 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 06:19:11,189 INFO L793 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 13#L20true assume !!(-268435455 <= main_~y~0); 5#L21true assume !!(-268435455 <= main_~z~0); 8#L22true assume main_#t~nondet2 != 0;havoc main_#t~nondet2;main_~x~0 := 1; 12#L27-2true [2018-11-10 06:19:11,190 INFO L795 eck$LassoCheckResult]: Loop: 12#L27-2true assume true; 7#L27true assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 12#L27-2true [2018-11-10 06:19:11,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:11,195 INFO L82 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2018-11-10 06:19:11,196 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:11,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:11,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:11,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:11,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 1 times [2018-11-10 06:19:11,265 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:11,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:11,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:11,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,276 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:11,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1806905869, now seen corresponding path program 1 times [2018-11-10 06:19:11,277 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:11,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:11,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:11,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:11,367 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:19:11,368 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:19:11,368 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:19:11,368 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:19:11,368 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 06:19:11,369 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,369 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:19:11,369 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:19:11,369 INFO L131 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2018-11-10 06:19:11,369 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:19:11,369 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:19:11,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,419 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:11,536 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:19:11,536 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,548 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,548 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,552 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,552 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,570 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,570 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,597 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,597 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,600 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,601 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,604 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,604 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,630 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,630 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,633 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,633 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,650 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,650 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,652 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,653 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,669 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,669 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:11,686 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:11,687 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:11,690 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:11,709 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:19:11,709 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:23,767 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 06:19:23,774 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:19:23,775 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:19:23,775 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:19:23,775 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:19:23,775 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:19:23,775 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:23,775 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:19:23,775 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:19:23,776 INFO L131 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2018-11-10 06:19:23,776 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:19:23,776 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:19:23,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,792 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,803 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:23,916 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:19:23,922 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:19:23,923 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,924 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:19:23,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,925 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,926 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:19:23,926 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:19:23,928 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,929 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,929 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,929 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:19:23,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,930 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:19:23,930 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:19:23,931 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,931 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,936 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,936 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,936 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,938 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:19:23,938 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:19:23,941 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,942 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,942 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,942 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:19:23,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,943 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,943 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,943 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:19:23,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:19:23,944 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,944 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,945 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,945 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 06:19:23,945 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,945 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,945 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,946 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 06:19:23,946 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 06:19:23,947 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,947 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,947 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,948 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,948 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,948 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,949 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:19:23,950 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:19:23,959 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:23,959 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:23,960 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:23,960 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:23,960 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:23,960 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:23,964 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:19:23,965 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:19:23,994 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:19:24,005 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 06:19:24,005 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 06:19:24,007 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:19:24,009 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 06:19:24,010 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:19:24,010 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 199 Supporting invariants [1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2018-11-10 06:19:24,015 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 06:19:24,062 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:24,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:24,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:24,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:19:24,089 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:19:24,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2018-11-10 06:19:24,140 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 5 states. [2018-11-10 06:19:24,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:19:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:19:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-10 06:19:24,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-10 06:19:24,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:24,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-10 06:19:24,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:24,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-10 06:19:24,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:24,147 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-10 06:19:24,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:19:24,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 7 states and 7 transitions. [2018-11-10 06:19:24,153 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 06:19:24,153 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 06:19:24,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 7 transitions. [2018-11-10 06:19:24,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:19:24,154 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-11-10 06:19:24,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 7 transitions. [2018-11-10 06:19:24,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-10 06:19:24,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-10 06:19:24,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-10 06:19:24,173 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-11-10 06:19:24,173 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-11-10 06:19:24,173 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 06:19:24,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 7 transitions. [2018-11-10 06:19:24,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-10 06:19:24,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 06:19:24,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 06:19:24,175 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 06:19:24,175 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-10 06:19:24,177 INFO L793 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 92#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~z~0 := main_#t~nondet1;havoc main_#t~nondet1; 93#L20 assume !!(-268435455 <= main_~y~0); 94#L21 assume !!(-268435455 <= main_~z~0); 95#L22 assume !(main_#t~nondet2 != 0);havoc main_#t~nondet2;main_~x~0 := -1; 98#L27-2 [2018-11-10 06:19:24,177 INFO L795 eck$LassoCheckResult]: Loop: 98#L27-2 assume true; 97#L27 assume !!(main_~y~0 < 100 && main_~z~0 < 100);main_~y~0 := main_~y~0 + main_~x~0;main_~z~0 := main_~z~0 - main_~x~0; 98#L27-2 [2018-11-10 06:19:24,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:24,177 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2018-11-10 06:19:24,177 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:24,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:24,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:24,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:24,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1639, now seen corresponding path program 2 times [2018-11-10 06:19:24,184 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:24,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:24,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:19:24,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:24,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1806907791, now seen corresponding path program 1 times [2018-11-10 06:19:24,191 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:19:24,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:19:24,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,192 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 06:19:24,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:19:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:19:24,222 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:19:24,222 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:19:24,222 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:19:24,222 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:19:24,222 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 06:19:24,222 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:24,223 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:19:24,223 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:19:24,223 INFO L131 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c_Iteration2_Lasso [2018-11-10 06:19:24,223 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:19:24,223 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:19:24,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,262 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:24,319 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:19:24,319 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:24,323 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:24,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:24,341 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:24,341 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:24,348 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:24,348 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:24,350 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 06:19:24,350 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:24,369 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 06:19:24,370 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5afaddea-9a96-4686-902e-298f5ae8253f/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:24,392 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 06:19:24,392 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 06:19:36,451 INFO L448 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-10 06:19:36,456 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 06:19:36,457 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 06:19:36,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 06:19:36,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 06:19:36,457 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 06:19:36,457 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 06:19:36,457 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 06:19:36,457 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 06:19:36,457 INFO L131 ssoRankerPreferences]: Filename of dumped script: Toulouse-BranchesToLoop_true-termination_true-valid-memsafety.c_Iteration2_Lasso [2018-11-10 06:19:36,457 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 06:19:36,457 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 06:19:36,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 06:19:36,544 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 06:19:36,544 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 06:19:36,544 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:36,545 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:36,545 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:36,545 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:36,545 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:36,547 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:19:36,548 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:19:36,549 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 06:19:36,550 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 06:19:36,550 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 06:19:36,550 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 06:19:36,550 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 06:19:36,550 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 06:19:36,551 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 06:19:36,552 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 06:19:36,566 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 06:19:36,574 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 06:19:36,574 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-10 06:19:36,574 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 06:19:36,576 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-10 06:19:36,576 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 06:19:36,576 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = -2*ULTIMATE.start_main_~z~0 + 199 Supporting invariants [-1*ULTIMATE.start_main_~x~0 - 1 >= 0] [2018-11-10 06:19:36,591 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-10 06:19:36,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:19:36,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:36,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:36,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:19:36,616 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 06:19:36,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 06:19:36,616 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-10 06:19:36,616 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 7 transitions. cyclomatic complexity: 1 Second operand 3 states. [2018-11-10 06:19:36,629 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 7 transitions. cyclomatic complexity: 1. Second operand 3 states. Result 9 states and 10 transitions. Complement of second has 4 states. [2018-11-10 06:19:36,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-10 06:19:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 06:19:36,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-10 06:19:36,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-10 06:19:36,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:36,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-10 06:19:36,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:36,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-10 06:19:36,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 06:19:36,631 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-10 06:19:36,631 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:19:36,631 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-10 06:19:36,631 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 06:19:36,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 06:19:36,632 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 06:19:36,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 06:19:36,632 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:19:36,632 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:19:36,632 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 06:19:36,632 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 06:19:36,632 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 06:19:36,632 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 06:19:36,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 06:19:36,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 06:19:36 BoogieIcfgContainer [2018-11-10 06:19:36,636 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 06:19:36,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:19:36,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:19:36,637 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:19:36,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:19:11" (3/4) ... [2018-11-10 06:19:36,639 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 06:19:36,639 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:19:36,639 INFO L168 Benchmark]: Toolchain (without parser) took 25883.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 960.2 MB in the beginning and 964.7 MB in the end (delta: -4.5 MB). Peak memory consumption was 185.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:19:36,641 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:19:36,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:19:36,642 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:19:36,642 INFO L168 Benchmark]: Boogie Preprocessor took 12.53 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:19:36,643 INFO L168 Benchmark]: RCFGBuilder took 175.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -233.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 06:19:36,643 INFO L168 Benchmark]: BuchiAutomizer took 25525.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 964.7 MB in the end (delta: 212.8 MB). Peak memory consumption was 212.8 MB. Max. memory is 11.5 GB. [2018-11-10 06:19:36,644 INFO L168 Benchmark]: Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 964.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:19:36,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.41 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.80 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.53 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 175.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 190.3 MB). Free memory was 946.8 MB in the beginning and 1.2 GB in the end (delta: -233.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 25525.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 964.7 MB in the end (delta: 212.8 MB). Peak memory consumption was 212.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.72 ms. Allocated memory is still 1.2 GB. Free memory is still 964.7 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 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * y + 199 and consists of 4 locations. One deterministic module has affine ranking function -2 * z + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 25.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 25.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 23 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax136 hnf97 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf93 smp100 dnf100 smp100 tf100 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 2 LassoNonterminationAnalysisTime: 24.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...