./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/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 1e3ef20869762bcfb9d8151d96b8065864cd760e ................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:05,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:05,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:05,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:05,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:05,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:05,389 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:05,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:05,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:05,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:05,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:05,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:05,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:05,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:05,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:05,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:05,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:05,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:05,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:05,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:05,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:05,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:05,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:05,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:05,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:05,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:05,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:05,418 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:05,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:05,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:05,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:05,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:05,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:05,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:05,424 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:05,424 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:05,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:05,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:05,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:05,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:05,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:05,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 09:01:05,443 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:05,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:05,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:05,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:05,445 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:05,445 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 09:01:05,445 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 09:01:05,447 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 09:01:05,447 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 09:01:05,448 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 09:01:05,448 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 09:01:05,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:05,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 09:01:05,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:05,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:05,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 09:01:05,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:05,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:05,450 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 09:01:05,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:05,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:05,451 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 09:01:05,451 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 09:01:05,452 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/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/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 -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2019-10-22 09:01:05,490 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:05,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:05,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:05,507 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:05,508 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:05,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2019-10-22 09:01:05,557 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/data/dd5de5155/6c5e48b854c0459495ea83e252a961b3/FLAGd59523b49 [2019-10-22 09:01:05,922 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:05,923 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/sv-benchmarks/c/termination-crafted-lit/cstrlen.c [2019-10-22 09:01:05,930 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/data/dd5de5155/6c5e48b854c0459495ea83e252a961b3/FLAGd59523b49 [2019-10-22 09:01:05,942 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/bin/uautomizer/data/dd5de5155/6c5e48b854c0459495ea83e252a961b3 [2019-10-22 09:01:05,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:05,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:05,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:05,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:05,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:05,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:05" (1/1) ... [2019-10-22 09:01:05,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e67027d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:05, skipping insertion in model container [2019-10-22 09:01:05,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:05" (1/1) ... [2019-10-22 09:01:05,960 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:05,975 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:06,144 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:06,241 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:06,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:06,276 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:06,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06 WrapperNode [2019-10-22 09:01:06,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:06,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:06,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:06,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:06,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:06,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:06,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:06,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:06,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,331 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... [2019-10-22 09:01:06,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:06,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:06,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:06,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:06,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1454dfde-26f8-4364-85fa-05122b7534bf/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 [2019-10-22 09:01:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 09:01:06,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:06,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:06,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:06,632 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:06,632 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 09:01:06,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:06 BoogieIcfgContainer [2019-10-22 09:01:06,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:06,634 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 09:01:06,634 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 09:01:06,637 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 09:01:06,637 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:06,638 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 09:01:05" (1/3) ... [2019-10-22 09:01:06,638 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d20195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:06, skipping insertion in model container [2019-10-22 09:01:06,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:06,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:06" (2/3) ... [2019-10-22 09:01:06,639 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@58d20195 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 09:01:06, skipping insertion in model container [2019-10-22 09:01:06,639 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 09:01:06,639 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:06" (3/3) ... [2019-10-22 09:01:06,641 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrlen.c [2019-10-22 09:01:06,685 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 09:01:06,685 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 09:01:06,685 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 09:01:06,686 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:06,686 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:06,686 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 09:01:06,686 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:06,686 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 09:01:06,698 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 09:01:06,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:06,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:06,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:06,720 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:06,720 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:06,721 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 09:01:06,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-10-22 09:01:06,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-10-22 09:01:06,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 09:01:06,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 09:01:06,722 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-10-22 09:01:06,722 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-10-22 09:01:06,729 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 13#L14true assume !(build_nondet_String_~length~0 < 1); 8#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 11#L19true main_#t~ret4.base, main_#t~ret4.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_#t~ret4.base, main_#t~ret4.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L30-3true [2019-10-22 09:01:06,729 INFO L793 eck$LassoCheckResult]: Loop: 7#L30-3true call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 10#L30-1true assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 7#L30-3true [2019-10-22 09:01:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:06,735 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2019-10-22 09:01:06,742 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:06,742 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241983351] [2019-10-22 09:01:06,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,743 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,743 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:06,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,862 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:06,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:06,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1478, now seen corresponding path program 1 times [2019-10-22 09:01:06,863 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:06,864 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271934414] [2019-10-22 09:01:06,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,864 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,879 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:06,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:06,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812491, now seen corresponding path program 1 times [2019-10-22 09:01:06,882 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:06,882 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975498046] [2019-10-22 09:01:06,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,883 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:06,883 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:06,941 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:07,186 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-10-22 09:01:07,274 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 09:01:07,275 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 09:01:07,275 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 09:01:07,275 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 09:01:07,276 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 09:01:07,276 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 09:01:07,276 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 09:01:07,276 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 09:01:07,276 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen.c_Iteration1_Lasso [2019-10-22 09:01:07,276 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 09:01:07,277 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 09:01:07,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,469 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-10-22 09:01:07,528 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,533 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 09:01:07,857 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 09:01:07,865 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 09:01:07,867 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 [2019-10-22 09:01:07,869 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,869 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:07,870 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,870 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,870 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,872 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:07,874 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:07,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,877 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 [2019-10-22 09:01:07,877 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,878 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:07,878 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,878 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,878 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,882 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:07,889 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:07,891 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,891 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 [2019-10-22 09:01:07,892 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,892 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,892 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,892 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,897 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:07,903 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:07,908 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,908 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 [2019-10-22 09:01:07,909 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,909 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:07,910 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,910 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,910 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,911 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:07,911 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:07,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,913 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 [2019-10-22 09:01:07,925 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,926 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 09:01:07,926 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,926 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,926 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,927 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 09:01:07,927 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 09:01:07,928 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,929 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 [2019-10-22 09:01:07,929 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,930 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,930 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,930 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,932 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:07,932 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:07,945 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:07,946 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 [2019-10-22 09:01:07,949 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:07,950 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:07,950 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:07,950 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:07,953 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:07,953 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:07,999 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 09:01:08,005 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 [2019-10-22 09:01:08,006 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 09:01:08,006 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 09:01:08,006 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 09:01:08,007 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 09:01:08,015 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 09:01:08,017 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 09:01:08,096 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 09:01:08,143 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 09:01:08,143 INFO L444 ModelExtractionUtils]: 29 out of 34 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-10-22 09:01:08,145 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 09:01:08,146 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-10-22 09:01:08,147 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 09:01:08,147 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1, ULTIMATE.start_cstrlen_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_cstrlen_~p~0.base)_1 - 1*ULTIMATE.start_cstrlen_~p~0.offset Supporting invariants [] [2019-10-22 09:01:08,160 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-10-22 09:01:08,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-10-22 09:01:08,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 09:01:08,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:08,215 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:08,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,239 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 [2019-10-22 09:01:08,240 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-10-22 09:01:08,276 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 24 states and 27 transitions. Complement of second has 5 states. [2019-10-22 09:01:08,277 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 [2019-10-22 09:01:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-10-22 09:01:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2019-10-22 09:01:08,281 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2019-10-22 09:01:08,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:08,282 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2019-10-22 09:01:08,282 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:08,283 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2019-10-22 09:01:08,283 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 09:01:08,284 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2019-10-22 09:01:08,285 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:08,288 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-10-22 09:01:08,289 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 09:01:08,289 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 09:01:08,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 09:01:08,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 09:01:08,290 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:08,290 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:08,290 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:08,290 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 09:01:08,290 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:08,291 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 09:01:08,291 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 09:01:08,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 09:01:08 BoogieIcfgContainer [2019-10-22 09:01:08,296 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 09:01:08,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:08,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:08,297 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:08,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:06" (3/4) ... [2019-10-22 09:01:08,301 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:08,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:08,303 INFO L168 Benchmark]: Toolchain (without parser) took 2357.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.7 MB in the beginning and 933.0 MB in the end (delta: 11.7 MB). Peak memory consumption was 169.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:08,303 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:08,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:08,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:08,305 INFO L168 Benchmark]: Boogie Preprocessor took 20.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:08,306 INFO L168 Benchmark]: RCFGBuilder took 300.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:08,306 INFO L168 Benchmark]: BuchiAutomizer took 1662.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.0 MB in the end (delta: 195.3 MB). Peak memory consumption was 195.3 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:08,306 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 1.2 GB. Free memory is still 933.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:08,309 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 330.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -207.3 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.40 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.67 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 300.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1662.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 933.0 MB in the end (delta: 195.3 MB). Peak memory consumption was 195.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 ms. Allocated memory is still 1.2 GB. Free memory is still 933.0 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[p] + -1 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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: 10 SDtfs, 16 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital127 mio100 ax100 hnf100 lsp95 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq194 hnf88 smp100 dnf118 smp100 tf100 neg98 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms 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...