./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/stpcpy.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/stpcpy.i -s /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 0.1.25-f470102 [2019-12-07 15:38:05,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 15:38:05,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 15:38:05,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 15:38:05,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 15:38:05,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 15:38:05,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 15:38:05,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 15:38:05,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 15:38:05,386 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 15:38:05,387 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 15:38:05,388 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 15:38:05,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 15:38:05,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 15:38:05,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 15:38:05,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 15:38:05,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 15:38:05,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 15:38:05,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 15:38:05,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 15:38:05,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 15:38:05,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 15:38:05,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 15:38:05,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 15:38:05,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 15:38:05,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 15:38:05,399 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 15:38:05,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 15:38:05,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 15:38:05,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 15:38:05,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 15:38:05,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 15:38:05,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 15:38:05,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 15:38:05,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 15:38:05,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 15:38:05,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 15:38:05,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 15:38:05,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 15:38:05,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 15:38:05,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 15:38:05,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 15:38:05,415 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 15:38:05,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 15:38:05,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 15:38:05,416 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 15:38:05,416 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 15:38:05,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 15:38:05,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 15:38:05,418 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 15:38:05,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 15:38:05,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 15:38:05,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 15:38:05,419 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 15:38:05,419 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 15:38:05,419 INFO L138 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/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:05,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 15:38:05,527 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 15:38:05,530 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 15:38:05,531 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 15:38:05,531 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 15:38:05,532 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/../../sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-12-07 15:38:05,576 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/data/4247b8265/d5edc330123b46769caba362410c3126/FLAG29a07838c [2019-12-07 15:38:06,010 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 15:38:06,010 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/sv-benchmarks/c/termination-libowfat/stpcpy.i [2019-12-07 15:38:06,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/data/4247b8265/d5edc330123b46769caba362410c3126/FLAG29a07838c [2019-12-07 15:38:06,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/uautomizer/data/4247b8265/d5edc330123b46769caba362410c3126 [2019-12-07 15:38:06,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 15:38:06,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 15:38:06,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:06,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 15:38:06,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 15:38:06,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5443d638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06, skipping insertion in model container [2019-12-07 15:38:06,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 15:38:06,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 15:38:06,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:06,274 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 15:38:06,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 15:38:06,329 INFO L208 MainTranslator]: Completed translation [2019-12-07 15:38:06,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06 WrapperNode [2019-12-07 15:38:06,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 15:38:06,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:06,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 15:38:06,330 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 15:38:06,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 15:38:06,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 15:38:06,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 15:38:06,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 15:38:06,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,375 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... [2019-12-07 15:38:06,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 15:38:06,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 15:38:06,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 15:38:06,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 15:38:06,377 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 15:38:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 15:38:06,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 15:38:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 15:38:06,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 15:38:06,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 15:38:06,556 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 15:38:06,556 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 15:38:06,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:06 BoogieIcfgContainer [2019-12-07 15:38:06,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 15:38:06,558 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 15:38:06,558 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 15:38:06,560 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 15:38:06,560 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:38:06,560 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 03:38:06" (1/3) ... [2019-12-07 15:38:06,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@302a874c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:38:06, skipping insertion in model container [2019-12-07 15:38:06,561 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:38:06,561 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 03:38:06" (2/3) ... [2019-12-07 15:38:06,561 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@302a874c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 03:38:06, skipping insertion in model container [2019-12-07 15:38:06,562 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 15:38:06,562 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:06" (3/3) ... [2019-12-07 15:38:06,563 INFO L371 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2019-12-07 15:38:06,592 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 15:38:06,593 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 15:38:06,593 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 15:38:06,593 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 15:38:06,593 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 15:38:06,593 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 15:38:06,593 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 15:38:06,593 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 15:38:06,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 15:38:06,615 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:38:06,615 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:38:06,615 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:38:06,620 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 15:38:06,620 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:38:06,620 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 15:38:06,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-12-07 15:38:06,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 15:38:06,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 15:38:06,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 15:38:06,621 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-12-07 15:38:06,621 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 15:38:06,626 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~in_len~0, main_~in~0.base, main_~in~0.offset, main_~out_len~0, main_~out~0.base, main_~out~0.offset;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 11#L512true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.allocOnStack(main_~in_len~0);main_~in~0.base, main_~in~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~in~0.base, main_~in~0.offset + (main_~in_len~0 - 1), 1);main_~out_len~0 := main_#t~nondet7;havoc main_#t~nondet7; 4#L516true assume !(main_~out_len~0 < main_~in_len~0);call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~out_len~0);main_~out~0.base, main_~out~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;stpcpy_#in~dst.base, stpcpy_#in~dst.offset, stpcpy_#in~src.base, stpcpy_#in~src.offset := main_~out~0.base, main_~out~0.offset, main_~in~0.base, main_~in~0.offset;havoc stpcpy_#res.base, stpcpy_#res.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset, stpcpy_#t~post3.base, stpcpy_#t~post3.offset, stpcpy_#t~mem4, stpcpy_~dst.base, stpcpy_~dst.offset, stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#in~dst.base, stpcpy_#in~dst.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#in~src.base, stpcpy_#in~src.offset; 6#L507-3true [2019-12-07 15:38:06,626 INFO L796 eck$LassoCheckResult]: Loop: 6#L507-3true stpcpy_#t~post2.base, stpcpy_#t~post2.offset := stpcpy_~dst.base, stpcpy_~dst.offset;stpcpy_~dst.base, stpcpy_~dst.offset := stpcpy_#t~post2.base, 1 + stpcpy_#t~post2.offset;stpcpy_#t~post3.base, stpcpy_#t~post3.offset := stpcpy_~src.base, stpcpy_~src.offset;stpcpy_~src.base, stpcpy_~src.offset := stpcpy_#t~post3.base, 1 + stpcpy_#t~post3.offset;call stpcpy_#t~mem4 := read~int(stpcpy_#t~post3.base, stpcpy_#t~post3.offset, 1);call write~int(stpcpy_#t~mem4, stpcpy_#t~post2.base, stpcpy_#t~post2.offset, 1); 13#L507-1true assume !!(0 != stpcpy_#t~mem4);havoc stpcpy_#t~mem4;havoc stpcpy_#t~post3.base, stpcpy_#t~post3.offset;havoc stpcpy_#t~post2.base, stpcpy_#t~post2.offset; 6#L507-3true [2019-12-07 15:38:06,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:06,630 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-12-07 15:38:06,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:38:06,636 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380809452] [2019-12-07 15:38:06,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,731 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:38:06,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:06,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2019-12-07 15:38:06,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:38:06,732 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378697534] [2019-12-07 15:38:06,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:06,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,746 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:38:06,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:06,747 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2019-12-07 15:38:06,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 15:38:06,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346264004] [2019-12-07 15:38:06,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 15:38:06,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 15:38:06,790 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 15:38:07,061 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-12-07 15:38:07,124 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 15:38:07,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 15:38:07,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 15:38:07,125 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 15:38:07,125 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 15:38:07,125 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 15:38:07,125 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 15:38:07,125 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 15:38:07,125 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2019-12-07 15:38:07,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 15:38:07,126 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 15:38:07,143 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,333 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-12-07 15:38:07,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 15:38:07,755 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 15:38:07,759 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,764 INFO L120 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 [2019-12-07 15:38:07,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,766 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:38:07,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,767 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,767 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,768 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:38:07,768 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:38:07,770 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,775 INFO L120 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 [2019-12-07 15:38:07,777 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,777 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:38:07,777 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,777 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,777 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,778 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:38:07,778 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:38:07,779 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,783 INFO L120 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 [2019-12-07 15:38:07,785 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,785 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:38:07,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,786 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:38:07,786 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:38:07,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,791 INFO L120 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 [2019-12-07 15:38:07,793 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,793 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 15:38:07,793 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,793 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,794 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,794 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 15:38:07,794 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 15:38:07,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,799 INFO L120 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 [2019-12-07 15:38:07,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,800 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,800 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:38:07,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:38:07,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,810 INFO L120 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 [2019-12-07 15:38:07,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 15:38:07,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 15:38:07,812 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 15:38:07,812 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 15:38:07,823 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 15:38:07,823 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 15:38:07,838 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 15:38:07,867 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2019-12-07 15:38:07,867 INFO L444 ModelExtractionUtils]: 13 out of 46 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97cd307e-65d1-4e14-9623-0ee80b268090/bin/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 [2019-12-07 15:38:07,873 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 15:38:07,880 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 15:38:07,881 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 15:38:07,881 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_stpcpy_~dst.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_stpcpy_~dst.offset Supporting invariants [] [2019-12-07 15:38:07,920 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2019-12-07 15:38:07,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 15:38:07,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 15:38:07,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:07,965 INFO L264 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-12-07 15:38:07,966 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 15:38:07,977 INFO L264 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2019-12-07 15:38:07,978 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 15:38:07,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 15:38:08,010 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-12-07 15:38:08,011 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-12-07 15:38:08,052 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 25 transitions. Complement of second has 6 states. [2019-12-07 15:38:08,052 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 [2019-12-07 15:38:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 15:38:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-12-07 15:38:08,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-12-07 15:38:08,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:38:08,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 6 letters. Loop has 2 letters. [2019-12-07 15:38:08,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:38:08,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 4 letters. [2019-12-07 15:38:08,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 15:38:08,057 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 25 transitions. [2019-12-07 15:38:08,058 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:38:08,060 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-12-07 15:38:08,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 15:38:08,061 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 15:38:08,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 15:38:08,061 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 15:38:08,061 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:38:08,061 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:38:08,062 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 15:38:08,062 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 15:38:08,062 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 15:38:08,062 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 15:38:08,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 15:38:08,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 03:38:08 BoogieIcfgContainer [2019-12-07 15:38:08,066 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 15:38:08,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 15:38:08,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 15:38:08,066 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 15:38:08,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 03:38:06" (3/4) ... [2019-12-07 15:38:08,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 15:38:08,069 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 15:38:08,070 INFO L168 Benchmark]: Toolchain (without parser) took 2039.00 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 942.0 MB in the beginning and 999.9 MB in the end (delta: -57.9 MB). Peak memory consumption was 51.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,071 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:08,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,072 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,072 INFO L168 Benchmark]: Boogie Preprocessor took 17.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,073 INFO L168 Benchmark]: RCFGBuilder took 180.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,073 INFO L168 Benchmark]: BuchiAutomizer took 1508.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. [2019-12-07 15:38:08,073 INFO L168 Benchmark]: Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 999.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 15:38:08,076 INFO L335 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 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.80 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1508.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.9 MB in the end (delta: 72.1 MB). Peak memory consumption was 72.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.20 ms. Allocated memory is still 1.1 GB. Free memory is still 999.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * 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[__builtin_alloca (out_len)] + -1 * dst and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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: 10 SDtfs, 10 SDslu, 2 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital190 mio100 ax100 hnf98 lsp96 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 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...