./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/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_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/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 0.1.23-635dfa2 [2018-12-01 20:05:37,514 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 20:05:37,515 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 20:05:37,521 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 20:05:37,521 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 20:05:37,521 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 20:05:37,522 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 20:05:37,523 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 20:05:37,524 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 20:05:37,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 20:05:37,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 20:05:37,525 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 20:05:37,525 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 20:05:37,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 20:05:37,526 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 20:05:37,527 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 20:05:37,527 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 20:05:37,528 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 20:05:37,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 20:05:37,530 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 20:05:37,530 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 20:05:37,531 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 20:05:37,532 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 20:05:37,532 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 20:05:37,532 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 20:05:37,532 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 20:05:37,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 20:05:37,533 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 20:05:37,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 20:05:37,534 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 20:05:37,534 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 20:05:37,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 20:05:37,535 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 20:05:37,535 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 20:05:37,535 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 20:05:37,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 20:05:37,536 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 20:05:37,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 20:05:37,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 20:05:37,544 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 20:05:37,545 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 20:05:37,545 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 20:05:37,546 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 20:05:37,546 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 20:05:37,547 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 20:05:37,547 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 20:05:37,547 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 20:05:37,547 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 20:05:37,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 20:05:37,547 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 20:05:37,547 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 20:05:37,548 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 20:05:37,548 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 20:05:37,548 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 20:05:37,548 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_06696af2-4e46-4eb9-9f02-58fb82643ddc/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 [2018-12-01 20:05:37,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 20:05:37,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 20:05:37,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 20:05:37,574 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 20:05:37,574 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 20:05:37,575 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-12-01 20:05:37,607 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/data/c7d1eed93/40e39e7a07ff4499b01973b392c13b06/FLAGb1e047aca [2018-12-01 20:05:38,012 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 20:05:38,012 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/sv-benchmarks/c/termination-crafted-lit/cstrlen_true-termination_true-no-overflow.c [2018-12-01 20:05:38,016 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/data/c7d1eed93/40e39e7a07ff4499b01973b392c13b06/FLAGb1e047aca [2018-12-01 20:05:38,025 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/bin-2019/uautomizer/data/c7d1eed93/40e39e7a07ff4499b01973b392c13b06 [2018-12-01 20:05:38,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 20:05:38,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 20:05:38,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 20:05:38,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 20:05:38,030 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 20:05:38,030 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71739fa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38, skipping insertion in model container [2018-12-01 20:05:38,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 20:05:38,045 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 20:05:38,132 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:05:38,137 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 20:05:38,146 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:05:38,155 INFO L195 MainTranslator]: Completed translation [2018-12-01 20:05:38,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38 WrapperNode [2018-12-01 20:05:38,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 20:05:38,155 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 20:05:38,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 20:05:38,155 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 20:05:38,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,165 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 20:05:38,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 20:05:38,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 20:05:38,176 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 20:05:38,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,211 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... [2018-12-01 20:05:38,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 20:05:38,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 20:05:38,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 20:05:38,219 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 20:05:38,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_06696af2-4e46-4eb9-9f02-58fb82643ddc/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 [2018-12-01 20:05:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 20:05:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 20:05:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 20:05:38,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 20:05:38,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 20:05:38,342 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 20:05:38,342 INFO L280 CfgBuilder]: Removed 9 assue(true) statements. [2018-12-01 20:05:38,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:05:38 BoogieIcfgContainer [2018-12-01 20:05:38,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 20:05:38,343 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 20:05:38,343 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 20:05:38,345 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 20:05:38,346 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:05:38,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:05:38" (1/3) ... [2018-12-01 20:05:38,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9a4da8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:05:38, skipping insertion in model container [2018-12-01 20:05:38,346 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:05:38,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:05:38" (2/3) ... [2018-12-01 20:05:38,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9a4da8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:05:38, skipping insertion in model container [2018-12-01 20:05:38,347 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:05:38,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:05:38" (3/3) ... [2018-12-01 20:05:38,348 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrlen_true-termination_true-no-overflow.c [2018-12-01 20:05:38,378 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 20:05:38,378 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 20:05:38,378 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 20:05:38,379 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 20:05:38,379 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 20:05:38,379 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 20:05:38,379 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 20:05:38,379 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 20:05:38,379 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 20:05:38,387 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 20:05:38,399 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 20:05:38,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:05:38,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:05:38,403 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-01 20:05:38,403 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 20:05:38,403 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 20:05:38,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 20:05:38,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-01 20:05:38,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:05:38,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:05:38,404 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-12-01 20:05:38,405 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-01 20:05:38,409 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~ret4.base, main_#t~ret4.offset, main_#t~ret5;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 13#L14true assume !(build_nondet_String_~length~0 < 1); 8#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.alloc(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 11#L19true main_#t~ret4.base, main_#t~ret4.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrlen_#in~s.base, cstrlen_#in~s.offset := main_#t~ret4.base, main_#t~ret4.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L30-3true [2018-12-01 20:05:38,410 INFO L796 eck$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 [2018-12-01 20:05:38,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:05:38,413 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2018-12-01 20:05:38,415 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:05:38,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:05:38,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:05:38,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:05:38,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1478, now seen corresponding path program 1 times [2018-12-01 20:05:38,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:05:38,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:05:38,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:05:38,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:05:38,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812491, now seen corresponding path program 1 times [2018-12-01 20:05:38,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:05:38,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:05:38,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:05:38,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:05:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:05:38,706 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 20:05:38,707 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 20:05:38,707 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 20:05:38,707 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 20:05:38,707 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 20:05:38,707 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 20:05:38,707 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 20:05:38,708 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 20:05:38,708 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-12-01 20:05:38,708 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 20:05:38,708 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 20:05:38,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,866 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:38,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-01 20:05:39,068 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 20:05:39,073 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 20:05:39,075 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 [2018-12-01 20:05:39,076 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,076 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:05:39,077 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,077 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,077 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,079 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:05:39,079 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:05:39,081 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,081 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 [2018-12-01 20:05:39,081 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,082 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:05:39,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,082 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:05:39,082 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:05:39,083 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,083 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 [2018-12-01 20:05:39,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,084 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,084 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,084 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,086 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:05:39,086 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:05:39,088 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,089 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 [2018-12-01 20:05:39,089 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,089 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:05:39,089 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,089 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,089 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,090 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:05:39,090 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:05:39,090 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,091 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 [2018-12-01 20:05:39,091 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,091 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 20:05:39,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,092 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 20:05:39,092 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 20:05:39,093 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,094 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 [2018-12-01 20:05:39,094 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,095 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,095 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,095 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:05:39,097 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:05:39,110 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 20:05:39,110 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 [2018-12-01 20:05:39,111 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 20:05:39,111 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 20:05:39,111 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 20:05:39,112 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 20:05:39,116 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 20:05:39,116 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 20:05:39,155 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 20:05:39,174 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-01 20:05:39,174 INFO L444 ModelExtractionUtils]: 28 out of 34 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-12-01 20:05:39,175 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 20:05:39,176 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-01 20:05:39,176 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 20:05:39,177 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 [] [2018-12-01 20:05:39,185 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-12-01 20:05:39,192 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 20:05:39,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:05:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:05:39,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:05:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:05:39,248 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 20:05:39,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:05:39,268 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 [2018-12-01 20:05:39,269 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 4 states. [2018-12-01 20:05:39,308 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. [2018-12-01 20:05:39,309 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 [2018-12-01 20:05:39,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-01 20:05:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2018-12-01 20:05:39,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-01 20:05:39,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:05:39,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-01 20:05:39,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:05:39,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 4 letters. [2018-12-01 20:05:39,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 20:05:39,313 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 27 transitions. [2018-12-01 20:05:39,314 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 20:05:39,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-12-01 20:05:39,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 20:05:39,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 20:05:39,317 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 20:05:39,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 20:05:39,317 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:05:39,317 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:05:39,317 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 20:05:39,317 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 20:05:39,317 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 20:05:39,318 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 20:05:39,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 20:05:39,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:05:39 BoogieIcfgContainer [2018-12-01 20:05:39,321 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 20:05:39,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 20:05:39,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 20:05:39,322 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 20:05:39,322 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:05:38" (3/4) ... [2018-12-01 20:05:39,324 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 20:05:39,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 20:05:39,325 INFO L168 Benchmark]: Toolchain (without parser) took 1298.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 953.3 MB in the beginning and 901.5 MB in the end (delta: 51.8 MB). Peak memory consumption was 176.6 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,326 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:05:39,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:05:39,327 INFO L168 Benchmark]: Boogie Preprocessor took 42.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,328 INFO L168 Benchmark]: RCFGBuilder took 124.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,328 INFO L168 Benchmark]: BuchiAutomizer took 978.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.9 MB in the end (delta: 200.1 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,329 INFO L168 Benchmark]: Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory was 904.9 MB in the beginning and 901.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-01 20:05:39,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 127.44 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 942.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 124.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 978.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 904.9 MB in the end (delta: 200.1 MB). Peak memory consumption was 200.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.88 ms. Allocated memory is still 1.2 GB. Free memory was 904.9 MB in the beginning and 901.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. 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 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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: inital124 mio100 ax100 hnf100 lsp95 ukn92 mio100 lsp48 div100 bol100 ite100 ukn100 eq194 hnf88 smp100 dnf112 smp100 tf100 neg98 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms 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...