./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/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 32bit --witnessprinter.graph.data.programhash d4019c4159483ac83115551cd48ccd0ba128dc3d ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:46:22,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:46:22,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:46:22,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:46:22,507 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:46:22,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:46:22,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:46:22,509 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:46:22,511 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:46:22,511 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:46:22,512 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:46:22,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:46:22,513 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:46:22,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:46:22,514 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:46:22,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:46:22,515 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:46:22,517 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:46:22,518 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:46:22,519 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:46:22,520 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:46:22,521 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:46:22,522 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:46:22,522 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:46:22,523 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:46:22,523 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:46:22,524 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:46:22,525 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:46:22,525 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:46:22,526 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:46:22,526 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:46:22,526 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:46:22,527 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:46:22,527 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:46:22,527 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:46:22,528 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:46:22,528 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-10 08:46:22,537 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:46:22,538 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:46:22,539 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:46:22,539 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:46:22,539 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:46:22,540 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:46:22,540 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:46:22,541 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:46:22,541 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:46:22,542 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:46:22,542 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:46:22,542 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:46:22,542 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:46:22,542 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:46:22,543 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_0784645e-d113-46d7-8026-285723fe9752/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4019c4159483ac83115551cd48ccd0ba128dc3d [2018-11-10 08:46:22,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:46:22,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:46:22,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:46:22,577 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:46:22,577 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:46:22,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-11-10 08:46:22,621 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/data/0c390a498/ae4650d2b11947ec98fb778d754b8ba5/FLAG433e422e5 [2018-11-10 08:46:23,055 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:46:23,055 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-11-10 08:46:23,063 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/data/0c390a498/ae4650d2b11947ec98fb778d754b8ba5/FLAG433e422e5 [2018-11-10 08:46:23,074 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/bin-2019/uautomizer/data/0c390a498/ae4650d2b11947ec98fb778d754b8ba5 [2018-11-10 08:46:23,077 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:46:23,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:46:23,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:23,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:46:23,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:46:23,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c475c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23, skipping insertion in model container [2018-11-10 08:46:23,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:46:23,123 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:46:23,301 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:23,309 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:46:23,335 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:46:23,357 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:46:23,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23 WrapperNode [2018-11-10 08:46:23,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:46:23,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:46:23,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:46:23,358 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:46:23,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:46:23,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:46:23,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:46:23,430 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:46:23,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... [2018-11-10 08:46:23,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:46:23,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:46:23,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:46:23,448 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:46:23,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0784645e-d113-46d7-8026-285723fe9752/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 [2018-11-10 08:46:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 08:46:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:46:23,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:46:23,645 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:46:23,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:23 BoogieIcfgContainer [2018-11-10 08:46:23,645 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:46:23,646 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:46:23,646 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:46:23,648 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:46:23,648 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:46:23,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:46:23" (1/3) ... [2018-11-10 08:46:23,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@573cb8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:46:23, skipping insertion in model container [2018-11-10 08:46:23,649 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:46:23,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:46:23" (2/3) ... [2018-11-10 08:46:23,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@573cb8d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:46:23, skipping insertion in model container [2018-11-10 08:46:23,650 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:46:23,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:23" (3/3) ... [2018-11-10 08:46:23,651 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-11-10 08:46:23,686 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:46:23,686 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:46:23,686 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:46:23,686 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:46:23,686 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:46:23,687 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:46:23,687 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:46:23,687 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:46:23,687 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:46:23,699 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 08:46:23,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 08:46:23,715 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:46:23,715 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:46:23,719 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:46:23,719 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 08:46:23,720 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:46:23,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-10 08:46:23,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-10 08:46:23,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:46:23,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:46:23,721 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 08:46:23,722 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-10 08:46:23,729 INFO L793 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 5#L556true assume !(main_~length~0 < 1); 8#L556-2true assume !(main_~n~0 < 1); 3#L559-1true #Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;assume { :begin_inline_#Ultimate.alloc } true;#Ultimate.alloc_~size := main_~n~0 * 1;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;assume { :end_inline_#Ultimate.alloc } true;main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;assume { :begin_inline_cmemchr } true;cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 9#L543true assume cmemchr_~n % 4294967296 != 0;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 15#L545-4true [2018-11-10 08:46:23,729 INFO L795 eck$LassoCheckResult]: Loop: 15#L545-4true assume true;cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, cmemchr_#t~post3.offset + 1; 4#L546true SUMMARY for call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); srcloc: L546 6#L546-1true assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~mem4;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset; 7#L545-1true cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 10#L545-2true assume !!(cmemchr_#t~pre2 % 4294967296 != 0);havoc cmemchr_#t~pre2; 15#L545-4true [2018-11-10 08:46:23,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:23,734 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2018-11-10 08:46:23,736 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:46:23,736 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:46:23,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:46:23,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:23,819 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:23,819 INFO L82 PathProgramCache]: Analyzing trace with hash 49659679, now seen corresponding path program 1 times [2018-11-10 08:46:23,820 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:46:23,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:46:23,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:46:23,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:23,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:23,843 INFO L82 PathProgramCache]: Analyzing trace with hash 2114482804, now seen corresponding path program 1 times [2018-11-10 08:46:23,843 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:46:23,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:46:23,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:46:23,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:46:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:23,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:46:24,136 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:46:24,137 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:46:24,137 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:46:24,137 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:46:24,138 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:46:24,138 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:46:24,138 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:46:24,138 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:46:24,138 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-10 08:46:24,138 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:46:24,138 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:46:24,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,169 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,175 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,178 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,322 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2018-11-10 08:46:24,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:46:24,853 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:46:24,857 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:46:24,859 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 [2018-11-10 08:46:24,860 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,861 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,861 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,861 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,861 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,863 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,863 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,866 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,866 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 [2018-11-10 08:46:24,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,876 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,876 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 [2018-11-10 08:46:24,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,878 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,878 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,878 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,879 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 [2018-11-10 08:46:24,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,879 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,879 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,879 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,880 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,880 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,883 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,883 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 [2018-11-10 08:46:24,884 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,884 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,884 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,884 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,884 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,885 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,885 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,885 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,886 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 [2018-11-10 08:46:24,886 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,886 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,886 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,887 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,887 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,887 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,887 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,888 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,888 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 [2018-11-10 08:46:24,889 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,889 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,889 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,889 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,889 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,890 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,891 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 [2018-11-10 08:46:24,891 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,891 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:46:24,892 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,892 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,892 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,892 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:46:24,893 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:46:24,894 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,894 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 [2018-11-10 08:46:24,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,895 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,896 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:46:24,897 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:46:24,900 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,900 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 [2018-11-10 08:46:24,901 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,901 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,901 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,901 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,903 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:46:24,903 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:46:24,912 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,912 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 [2018-11-10 08:46:24,913 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,913 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,913 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 08:46:24,913 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,922 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-11-10 08:46:24,922 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-10 08:46:24,962 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:46:24,962 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 [2018-11-10 08:46:24,963 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:46:24,963 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:46:24,963 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:46:24,963 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:46:24,968 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:46:24,968 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:46:25,005 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:46:25,038 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-11-10 08:46:25,039 INFO L444 ModelExtractionUtils]: 33 out of 40 variables were initially zero. Simplification set additionally 4 variables to zero. [2018-11-10 08:46:25,041 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:46:25,042 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-10 08:46:25,043 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:46:25,043 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1, ULTIMATE.start_cmemchr_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_#Ultimate.alloc_#res.base)_1 - 1*ULTIMATE.start_cmemchr_~p~0.offset Supporting invariants [] [2018-11-10 08:46:25,068 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2018-11-10 08:46:25,079 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 08:46:25,081 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-10 08:46:25,081 WARN L1239 BoogieBacktranslator]: unknown boogie variable #Ultimate.alloc_#res [2018-11-10 08:46:25,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:46:25,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:46:25,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:46:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:46:25,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:46:25,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:46:25,242 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2018-11-10 08:46:25,243 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2018-11-10 08:46:25,304 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 38 states and 43 transitions. Complement of second has 8 states. [2018-11-10 08:46:25,305 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:46:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-10 08:46:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 31 transitions. [2018-11-10 08:46:25,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 6 letters. Loop has 5 letters. [2018-11-10 08:46:25,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:46:25,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 11 letters. Loop has 5 letters. [2018-11-10 08:46:25,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:46:25,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 31 transitions. Stem has 6 letters. Loop has 10 letters. [2018-11-10 08:46:25,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:46:25,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 43 transitions. [2018-11-10 08:46:25,312 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:46:25,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2018-11-10 08:46:25,314 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:46:25,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:46:25,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:46:25,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:46:25,315 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:46:25,315 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:46:25,315 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:46:25,315 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:46:25,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:46:25,315 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:46:25,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:46:25,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:46:25 BoogieIcfgContainer [2018-11-10 08:46:25,319 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:46:25,320 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:46:25,320 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:46:25,320 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:46:25,320 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:46:23" (3/4) ... [2018-11-10 08:46:25,323 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:46:25,323 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:46:25,323 INFO L168 Benchmark]: Toolchain (without parser) took 2246.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 957.6 MB in the beginning and 1.1 GB in the end (delta: -116.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:25,324 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. [2018-11-10 08:46:25,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.27 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:25,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:25,325 INFO L168 Benchmark]: Boogie Preprocessor took 18.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:25,326 INFO L168 Benchmark]: RCFGBuilder took 197.57 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:25,326 INFO L168 Benchmark]: BuchiAutomizer took 1673.69 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2018-11-10 08:46:25,327 INFO L168 Benchmark]: Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:46:25,329 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 279.27 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 936.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 936.2 MB in the beginning and 1.1 GB in the end (delta: -194.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 197.57 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1673.69 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: 38.4 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #Ultimate.alloc_#res * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[#Ultimate.alloc_#res] + -1 * p and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 20 SDtfs, 21 SDslu, 21 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital148 mio100 ax100 hnf98 lsp93 ukn114 mio100 lsp48 div205 bol100 ite100 ukn100 eq169 hnf64 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 3 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...