./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i --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_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/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 313812bc7f7f65c22e6158e6e59cd01f03c6b884 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:10:29,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:10:29,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:10:29,976 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:10:29,977 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:10:29,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:10:29,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:10:29,980 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:10:29,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:10:29,989 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:10:29,991 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:10:29,991 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:10:29,992 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:10:29,993 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:10:29,993 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:10:29,994 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:10:29,994 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:10:29,995 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:10:29,999 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:10:30,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:10:30,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:10:30,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:10:30,010 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:10:30,010 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:10:30,010 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:10:30,011 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:10:30,011 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:10:30,012 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:10:30,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:10:30,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:10:30,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:10:30,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:10:30,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:10:30,014 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:10:30,015 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:10:30,015 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:10:30,015 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:10:30,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:10:30,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:10:30,037 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:10:30,037 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:10:30,038 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:10:30,038 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:10:30,038 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:10:30,039 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:10:30,039 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:10:30,039 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:10:30,039 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:10:30,040 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:10:30,040 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:10:30,040 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:10:30,040 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:10:30,040 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:10:30,040 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:10:30,041 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:10:30,041 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:10:30,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:10:30,042 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:10:30,042 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:10:30,042 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:10:30,043 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_75ab5500-d540-4192-ae8f-76693b36fd87/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 -> 313812bc7f7f65c22e6158e6e59cd01f03c6b884 [2018-10-27 06:10:30,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:10:30,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:10:30,099 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:10:30,100 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:10:30,100 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:10:30,101 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i [2018-10-27 06:10:30,146 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/data/5704ec079/cbf8d7c4a728460fa2146da32a6706a9/FLAGe61cdad91 [2018-10-27 06:10:30,569 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:10:30,569 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/sv-benchmarks/c/termination-libowfat/stpcpy_true-termination.c.i [2018-10-27 06:10:30,580 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/data/5704ec079/cbf8d7c4a728460fa2146da32a6706a9/FLAGe61cdad91 [2018-10-27 06:10:30,594 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/bin-2019/uautomizer/data/5704ec079/cbf8d7c4a728460fa2146da32a6706a9 [2018-10-27 06:10:30,598 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:10:30,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:10:30,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:30,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:10:30,604 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:10:30,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:30" (1/1) ... [2018-10-27 06:10:30,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663dffd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:30, skipping insertion in model container [2018-10-27 06:10:30,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:10:30" (1/1) ... [2018-10-27 06:10:30,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:10:30,664 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:10:30,938 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:30,946 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:10:30,985 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:10:31,030 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:10:31,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31 WrapperNode [2018-10-27 06:10:31,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:10:31,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:31,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:10:31,032 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:10:31,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,138 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:10:31,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:10:31,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:10:31,139 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:10:31,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,161 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... [2018-10-27 06:10:31,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:10:31,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:10:31,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:10:31,165 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:10:31,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_75ab5500-d540-4192-ae8f-76693b36fd87/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 [2018-10-27 06:10:31,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-27 06:10:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-10-27 06:10:31,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:10:31,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:10:31,646 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:10:31,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:31 BoogieIcfgContainer [2018-10-27 06:10:31,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:10:31,647 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:10:31,647 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:10:31,651 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:10:31,652 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:31,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:10:30" (1/3) ... [2018-10-27 06:10:31,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dd1ced0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:31, skipping insertion in model container [2018-10-27 06:10:31,653 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:31,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:10:31" (2/3) ... [2018-10-27 06:10:31,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@dd1ced0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:10:31, skipping insertion in model container [2018-10-27 06:10:31,654 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:10:31,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:31" (3/3) ... [2018-10-27 06:10:31,656 INFO L375 chiAutomizerObserver]: Analyzing ICFG stpcpy_true-termination.c.i [2018-10-27 06:10:31,710 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:10:31,711 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:10:31,711 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:10:31,711 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:10:31,711 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:10:31,711 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:10:31,711 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:10:31,711 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:10:31,712 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:10:31,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-10-27 06:10:31,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:31,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:31,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:31,762 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:10:31,762 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:10:31,762 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:10:31,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-10-27 06:10:31,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-10-27 06:10:31,764 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:10:31,764 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:10:31,764 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:10:31,765 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:10:31,775 INFO L793 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 9#L512true assume !(main_~in_len~0 < 1);#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~in_len~0;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset; 6#L514true SUMMARY for call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1) * 1, 1); srcloc: L514 8#L514-1true main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 3#L516true assume !(main_~out_len~0 < main_~in_len~0);#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~out_len~0;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;assume { :begin_inline_stpcpy } true;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 10#L507-6true [2018-10-27 06:10:31,775 INFO L795 eck$LassoCheckResult]: Loop: 10#L507-6true assume true; 18#L507-1true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, stpcpy_#t~post2.offset + 1;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, stpcpy_#t~post3.offset + 1; 4#L507-2true SUMMARY for call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1); srcloc: L507-2 5#L507-3true SUMMARY for call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); srcloc: L507-3 7#L507-4true assume !!(stpcpy_#t~mem4 != 0);havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~mem4; 10#L507-6true [2018-10-27 06:10:31,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:31,784 INFO L82 PathProgramCache]: Analyzing trace with hash 889567241, now seen corresponding path program 1 times [2018-10-27 06:10:31,787 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:31,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:31,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:31,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:31,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:31,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:31,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash 45869239, now seen corresponding path program 1 times [2018-10-27 06:10:31,951 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:31,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:31,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:31,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:31,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:31,987 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:31,990 INFO L82 PathProgramCache]: Analyzing trace with hash 842003887, now seen corresponding path program 1 times [2018-10-27 06:10:31,991 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:10:31,991 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:10:31,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:31,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:10:31,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:10:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:10:32,287 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-10-27 06:10:32,396 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-10-27 06:10:33,104 WARN L179 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2018-10-27 06:10:33,413 WARN L179 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-27 06:10:33,423 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:10:33,424 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:10:33,424 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:10:33,424 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:10:33,424 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:10:33,425 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:10:33,426 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:10:33,426 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:10:33,426 INFO L131 ssoRankerPreferences]: Filename of dumped script: stpcpy_true-termination.c.i_Iteration1_Lasso [2018-10-27 06:10:33,426 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:10:33,427 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:10:33,447 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,460 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,470 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:33,845 WARN L179 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2018-10-27 06:10:34,151 WARN L179 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2018-10-27 06:10:34,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:10:34,660 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:10:34,664 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:10:34,665 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 [2018-10-27 06:10:34,667 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,667 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:34,667 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,667 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,668 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,669 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:34,669 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:34,672 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,672 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 [2018-10-27 06:10:34,673 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,673 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:34,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,674 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:34,674 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:34,675 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,675 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 [2018-10-27 06:10:34,675 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,676 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:34,676 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,676 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,676 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,676 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:34,677 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:34,677 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,678 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 [2018-10-27 06:10:34,678 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,678 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:34,679 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,679 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:34,679 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:34,680 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,680 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 [2018-10-27 06:10:34,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,681 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,681 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,681 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,683 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:34,684 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:34,687 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,688 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 [2018-10-27 06:10:34,688 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,688 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:10:34,689 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,689 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:10:34,689 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:10:34,690 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,691 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 [2018-10-27 06:10:34,691 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,692 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,692 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,693 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:34,693 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:34,704 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,705 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 [2018-10-27 06:10:34,705 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,705 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-10-27 06:10:34,705 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,706 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,709 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-10-27 06:10:34,709 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:34,744 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,749 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 [2018-10-27 06:10:34,750 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,750 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,750 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,750 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,752 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:34,752 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:34,755 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:10:34,756 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 [2018-10-27 06:10:34,756 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:10:34,758 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:10:34,758 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:10:34,758 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:10:34,764 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:10:34,769 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:10:34,956 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:10:35,012 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:10:35,015 INFO L444 ModelExtractionUtils]: 42 out of 49 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-10-27 06:10:35,018 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:10:35,021 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-10-27 06:10:35,023 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:10:35,024 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1, ULTIMATE.start_stpcpy_~dst.offset) = 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 - 1*ULTIMATE.start_stpcpy_~dst.offset Supporting invariants [] [2018-10-27 06:10:35,167 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2018-10-27 06:10:35,172 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 06:10:35,174 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-10-27 06:10:35,174 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-10-27 06:10:35,194 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:10:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:35,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:10:35,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:10:35,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:10:35,315 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:10:35,316 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2018-10-27 06:10:35,408 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 35 states and 38 transitions. Complement of second has 7 states. [2018-10-27 06:10:35,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:10:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:10:35,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-10-27 06:10:35,415 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 5 letters. [2018-10-27 06:10:35,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:35,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 5 letters. [2018-10-27 06:10:35,416 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:35,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 10 letters. [2018-10-27 06:10:35,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:10:35,420 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 38 transitions. [2018-10-27 06:10:35,423 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:35,427 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 0 states and 0 transitions. [2018-10-27 06:10:35,428 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:10:35,428 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:10:35,429 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:10:35,430 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:10:35,430 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:35,430 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:35,430 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:10:35,430 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:10:35,430 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:10:35,430 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:10:35,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:10:35,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:10:35 BoogieIcfgContainer [2018-10-27 06:10:35,437 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:10:35,437 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:10:35,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:10:35,438 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:10:35,438 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:10:31" (3/4) ... [2018-10-27 06:10:35,441 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:10:35,442 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:10:35,442 INFO L168 Benchmark]: Toolchain (without parser) took 4844.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 61.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,443 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:35,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,448 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,448 INFO L168 Benchmark]: RCFGBuilder took 482.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,449 INFO L168 Benchmark]: BuchiAutomizer took 3789.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:10:35,449 INFO L168 Benchmark]: Witness Printer took 4.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:10:35,451 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 430.93 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 106.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 930.3 MB in the beginning and 1.1 GB in the end (delta: -215.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 482.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3789.97 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[#Ultimate.alloc_#res] + -1 * dst and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 10 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital198 mio100 ax100 hnf98 lsp96 ukn117 mio100 lsp40 div100 bol100 ite100 ukn100 eq201 hnf87 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 5 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...