./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1e3ef20869762bcfb9d8151d96b8065864cd760e ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:59:07,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:59:07,651 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:59:07,658 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:59:07,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:59:07,659 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:59:07,659 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:59:07,661 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:59:07,662 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:59:07,663 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:59:07,663 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:59:07,663 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:59:07,664 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:59:07,665 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:59:07,666 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:59:07,667 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:59:07,667 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:59:07,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:59:07,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:59:07,671 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:59:07,671 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:59:07,672 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:59:07,673 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:59:07,673 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:59:07,674 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:59:07,674 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:59:07,675 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:59:07,676 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:59:07,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:59:07,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:59:07,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:59:07,678 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:59:07,678 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:59:07,678 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:59:07,679 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:59:07,679 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:59:07,679 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 15:59:07,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:59:07,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:59:07,688 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:59:07,688 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:59:07,688 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:59:07,688 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 15:59:07,688 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 15:59:07,688 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 15:59:07,688 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 15:59:07,689 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 15:59:07,689 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 15:59:07,690 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:59:07,690 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:59:07,691 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 15:59:07,691 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:59:07,691 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:59:07,691 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 15:59:07,692 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 15:59:07,692 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e3ef20869762bcfb9d8151d96b8065864cd760e [2018-11-23 15:59:07,715 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:59:07,724 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:59:07,727 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:59:07,728 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:59:07,728 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:59:07,729 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-11-23 15:59:07,768 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/data/d4b5569e0/34a6ec1072b14756b39619184f8aaaee/FLAG1389f778f [2018-11-23 15:59:08,172 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:59:08,172 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-11-23 15:59:08,176 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/data/d4b5569e0/34a6ec1072b14756b39619184f8aaaee/FLAG1389f778f [2018-11-23 15:59:08,185 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/data/d4b5569e0/34a6ec1072b14756b39619184f8aaaee [2018-11-23 15:59:08,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:59:08,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:59:08,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:59:08,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:59:08,191 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:59:08,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed7bee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08, skipping insertion in model container [2018-11-23 15:59:08,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:59:08,212 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:59:08,318 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:59:08,324 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:59:08,334 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:59:08,343 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:59:08,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08 WrapperNode [2018-11-23 15:59:08,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:59:08,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:59:08,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:59:08,344 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:59:08,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,409 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:59:08,409 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:59:08,409 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:59:08,409 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:59:08,416 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,416 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,418 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... [2018-11-23 15:59:08,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:59:08,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:59:08,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:59:08,432 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:59:08,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5c9f58b8-64af-4352-b063-19254b16bea4/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:59:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 15:59:08,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 15:59:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:59:08,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:59:08,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 15:59:08,615 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:59:08,615 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-11-23 15:59:08,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:59:08 BoogieIcfgContainer [2018-11-23 15:59:08,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:59:08,616 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 15:59:08,616 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 15:59:08,619 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 15:59:08,619 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:59:08,620 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 03:59:08" (1/3) ... [2018-11-23 15:59:08,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48fde66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:59:08, skipping insertion in model container [2018-11-23 15:59:08,621 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:59:08,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:08" (2/3) ... [2018-11-23 15:59:08,621 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48fde66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:59:08, skipping insertion in model container [2018-11-23 15:59:08,621 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:59:08,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:59:08" (3/3) ... [2018-11-23 15:59:08,623 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrlen_true-termination_true-no-overflow.c [2018-11-23 15:59:08,668 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:59:08,668 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 15:59:08,669 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 15:59:08,669 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 15:59:08,669 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:59:08,669 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:59:08,669 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 15:59:08,669 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:59:08,669 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 15:59:08,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 15:59:08,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:59:08,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:59:08,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:59:08,702 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 15:59:08,702 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:59:08,702 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 15:59:08,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-11-23 15:59:08,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:59:08,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:59:08,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:59:08,704 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-23 15:59:08,704 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:59:08,711 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 13#L14true assume !(build_nondet_String_~length~0 < 1); 8#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.alloc(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 11#L19true main_#t~ret4.base, main_#t~ret4.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_#t~ret4.base, main_#t~ret4.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L30-3true [2018-11-23 15:59:08,711 INFO L796 eck$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 [2018-11-23 15:59:08,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:59:08,716 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2018-11-23 15:59:08,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:59:08,719 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:59:08,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:59:08,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:08,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:59:08,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1478, now seen corresponding path program 1 times [2018-11-23 15:59:08,824 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:59:08,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:59:08,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:59:08,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:08,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:59:08,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812491, now seen corresponding path program 1 times [2018-11-23 15:59:08,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:59:08,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:59:08,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:59:08,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:59:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:59:09,055 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-11-23 15:59:09,105 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:59:09,106 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:59:09,106 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:59:09,106 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:59:09,106 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 15:59:09,106 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:59:09,106 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:59:09,107 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:59:09,107 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-11-23 15:59:09,107 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:59:09,107 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:59:09,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,284 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2018-11-23 15:59:09,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:59:09,571 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:59:09,575 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 15:59:09,577 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,579 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,579 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:59:09,579 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,580 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,580 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,581 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:59:09,582 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:59:09,583 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:59:09,583 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,584 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,584 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:59:09,584 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,585 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,585 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,585 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:59:09,585 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:59:09,586 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:59:09,587 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,587 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,588 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,588 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,588 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,590 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 15:59:09,590 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 15:59:09,594 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:59:09,594 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,595 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,595 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:59:09,595 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,595 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,595 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,596 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:59:09,596 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:59:09,597 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:59:09,597 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,598 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,598 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:59:09,598 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,598 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,599 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,599 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:59:09,599 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:59:09,600 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:59:09,600 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:59:09,601 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:59:09,601 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:59:09,601 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:59:09,602 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:59:09,608 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 15:59:09,608 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 15:59:09,650 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 15:59:09,677 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 15:59:09,677 INFO L444 ModelExtractionUtils]: 28 out of 34 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 15:59:09,679 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 15:59:09,681 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 15:59:09,681 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 15:59:09,682 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1 Supporting invariants [] [2018-11-23 15:59:09,698 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-23 15:59:09,709 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 15:59:09,727 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:59:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:59:09,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:59:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:59:09,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:59:09,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:59:09,781 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-23 15:59:09,782 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2018-11-23 15:59:09,823 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 4 states. Result 24 states and 27 transitions. Complement of second has 6 states. [2018-11-23 15:59:09,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 15:59:09,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 15:59:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-11-23 15:59:09,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 15:59:09,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:59:09,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 15:59:09,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:59:09,827 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-23 15:59:09,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:59:09,827 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2018-11-23 15:59:09,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 15:59:09,831 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-11-23 15:59:09,832 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 15:59:09,832 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 15:59:09,832 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 15:59:09,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 15:59:09,832 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:59:09,832 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:59:09,832 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:59:09,832 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 15:59:09,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:59:09,833 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 15:59:09,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 15:59:09,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 03:59:09 BoogieIcfgContainer [2018-11-23 15:59:09,837 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 15:59:09,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:59:09,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:59:09,837 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:59:09,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:59:08" (3/4) ... [2018-11-23 15:59:09,840 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 15:59:09,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:59:09,841 INFO L168 Benchmark]: Toolchain (without parser) took 1653.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 959.3 MB in the beginning and 950.7 MB in the end (delta: 8.6 MB). Peak memory consumption was 182.1 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,841 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:59:09,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.94 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,842 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -223.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,843 INFO L168 Benchmark]: Boogie Preprocessor took 22.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,843 INFO L168 Benchmark]: RCFGBuilder took 183.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,844 INFO L168 Benchmark]: BuchiAutomizer took 1221.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 950.7 MB in the end (delta: 203.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. [2018-11-23 15:59:09,844 INFO L168 Benchmark]: Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 950.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:59:09,846 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 155.94 ms. Allocated memory is still 1.0 GB. Free memory was 959.3 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 948.5 MB in the beginning and 1.2 GB in the end (delta: -223.4 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1221.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 950.7 MB in the end (delta: 203.5 MB). Peak memory consumption was 203.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 950.7 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 -1 * p + unknown-#length-unknown[malloc(length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. 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: 9 SDtfs, 10 SDslu, 7 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital123 mio100 ax100 hnf99 lsp95 ukn92 mio100 lsp47 div100 bol100 ite100 ukn100 eq198 hnf88 smp100 dnf114 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms 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...