./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-libowfat/wcsrchr_true-termination.c.i --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_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-libowfat/wcsrchr_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/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 68f8eea80a577660110c4d18097f51970ea54e3a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:27:51,639 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 18:27:51,640 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 18:27:51,646 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 18:27:51,646 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 18:27:51,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 18:27:51,647 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 18:27:51,648 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 18:27:51,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 18:27:51,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 18:27:51,650 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 18:27:51,650 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 18:27:51,651 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 18:27:51,651 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 18:27:51,652 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 18:27:51,652 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 18:27:51,653 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 18:27:51,654 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 18:27:51,655 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 18:27:51,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 18:27:51,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 18:27:51,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 18:27:51,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 18:27:51,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 18:27:51,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 18:27:51,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 18:27:51,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 18:27:51,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 18:27:51,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 18:27:51,661 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 18:27:51,661 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 18:27:51,662 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 18:27:51,662 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 18:27:51,662 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 18:27:51,662 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 18:27:51,663 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 18:27:51,663 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-01 18:27:51,671 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 18:27:51,671 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 18:27:51,672 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 18:27:51,672 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 18:27:51,672 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 18:27:51,672 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 18:27:51,672 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 18:27:51,672 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 18:27:51,672 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 18:27:51,673 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 18:27:51,673 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 18:27:51,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 18:27:51,674 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 18:27:51,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 18:27:51,675 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 18:27:51,675 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 18:27:51,675 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 18:27:51,675 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_5e6fedc1-2031-4591-9464-c88944a85e18/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 -> 68f8eea80a577660110c4d18097f51970ea54e3a [2018-12-01 18:27:51,693 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 18:27:51,699 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 18:27:51,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 18:27:51,702 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 18:27:51,702 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 18:27:51,703 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/../../sv-benchmarks/c/termination-libowfat/wcsrchr_true-termination.c.i [2018-12-01 18:27:51,737 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/data/56927b7c2/37d38d41a7c14d7383c19d7172cfcea0/FLAG4ad3cfeca [2018-12-01 18:27:52,060 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 18:27:52,060 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/sv-benchmarks/c/termination-libowfat/wcsrchr_true-termination.c.i [2018-12-01 18:27:52,066 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/data/56927b7c2/37d38d41a7c14d7383c19d7172cfcea0/FLAG4ad3cfeca [2018-12-01 18:27:52,073 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/bin-2019/uautomizer/data/56927b7c2/37d38d41a7c14d7383c19d7172cfcea0 [2018-12-01 18:27:52,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 18:27:52,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 18:27:52,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 18:27:52,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 18:27:52,078 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 18:27:52,079 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c8ed641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52, skipping insertion in model container [2018-12-01 18:27:52,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 18:27:52,106 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 18:27:52,245 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:27:52,251 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 18:27:52,310 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 18:27:52,331 INFO L195 MainTranslator]: Completed translation [2018-12-01 18:27:52,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52 WrapperNode [2018-12-01 18:27:52,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 18:27:52,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 18:27:52,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 18:27:52,332 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 18:27:52,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 18:27:52,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 18:27:52,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 18:27:52,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 18:27:52,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,370 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... [2018-12-01 18:27:52,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 18:27:52,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 18:27:52,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 18:27:52,371 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 18:27:52,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5e6fedc1-2031-4591-9464-c88944a85e18/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 18:27:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 18:27:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-01 18:27:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-01 18:27:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-01 18:27:52,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 18:27:52,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 18:27:52,520 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 18:27:52,521 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-01 18:27:52,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:52 BoogieIcfgContainer [2018-12-01 18:27:52,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 18:27:52,521 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 18:27:52,521 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 18:27:52,526 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 18:27:52,527 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:27:52,527 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 06:27:52" (1/3) ... [2018-12-01 18:27:52,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@88efae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 06:27:52, skipping insertion in model container [2018-12-01 18:27:52,528 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:27:52,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:27:52" (2/3) ... [2018-12-01 18:27:52,528 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@88efae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 06:27:52, skipping insertion in model container [2018-12-01 18:27:52,528 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 18:27:52,528 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:52" (3/3) ... [2018-12-01 18:27:52,529 INFO L375 chiAutomizerObserver]: Analyzing ICFG wcsrchr_true-termination.c.i [2018-12-01 18:27:52,570 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 18:27:52,571 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 18:27:52,571 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 18:27:52,571 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 18:27:52,571 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 18:27:52,571 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 18:27:52,571 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 18:27:52,571 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 18:27:52,571 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 18:27:52,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 18:27:52,593 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 18:27:52,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 18:27:52,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 18:27:52,598 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 18:27:52,598 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 18:27:52,598 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 18:27:52,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2018-12-01 18:27:52,599 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-01 18:27:52,599 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 18:27:52,599 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 18:27:52,599 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-01 18:27:52,599 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-01 18:27:52,604 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~malloc6.base, main_#t~malloc6.offset, main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~in_len~0, main_~hay~0.base, main_~hay~0.offset, main_~needle~0;main_~in_len~0 := main_#t~nondet5;havoc main_#t~nondet5; 6#L515true assume !(main_~in_len~0 < 1);call main_#t~malloc6.base, main_#t~malloc6.offset := #Ultimate.alloc(4 * main_~in_len~0);main_~hay~0.base, main_~hay~0.offset := main_#t~malloc6.base, main_#t~malloc6.offset;call write~int(0, main_~hay~0.base, main_~hay~0.offset + 4 * (main_~in_len~0 - 1), 4);main_~needle~0 := main_#t~nondet7;havoc main_#t~nondet7;wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset, wcsrchr_#in~wc := main_~hay~0.base, main_~hay~0.offset, main_~needle~0;havoc wcsrchr_#res.base, wcsrchr_#res.offset;havoc wcsrchr_#t~mem3, wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset, wcsrchr_#t~mem4, wcsrchr_~wcs.base, wcsrchr_~wcs.offset, wcsrchr_~wc, wcsrchr_~last~0.base, wcsrchr_~last~0.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_#in~wcs.base, wcsrchr_#in~wcs.offset;wcsrchr_~wc := wcsrchr_#in~wc;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := 0, 0; 7#L508-4true [2018-12-01 18:27:52,604 INFO L796 eck$LassoCheckResult]: Loop: 7#L508-4true call wcsrchr_#t~mem4 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 12#L508-1true assume !!(0 != wcsrchr_#t~mem4);havoc wcsrchr_#t~mem4;call wcsrchr_#t~mem3 := read~int(wcsrchr_~wcs.base, wcsrchr_~wcs.offset, 4); 8#L509true assume wcsrchr_#t~mem3 == wcsrchr_~wc;havoc wcsrchr_#t~mem3;wcsrchr_~last~0.base, wcsrchr_~last~0.offset := wcsrchr_~wcs.base, wcsrchr_~wcs.offset; 4#L508-3true wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;wcsrchr_~wcs.base, wcsrchr_~wcs.offset := wcsrchr_~wcs.base, 4 + wcsrchr_~wcs.offset;havoc wcsrchr_#t~pre2.base, wcsrchr_#t~pre2.offset; 7#L508-4true [2018-12-01 18:27:52,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:27:52,608 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-12-01 18:27:52,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:27:52,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:27:52,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:27:52,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:27:52,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1267210, now seen corresponding path program 1 times [2018-12-01 18:27:52,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:27:52,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:27:52,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:27:52,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:27:52,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1806876973, now seen corresponding path program 1 times [2018-12-01 18:27:52,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 18:27:52,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 18:27:52,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 18:27:52,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 18:27:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 18:27:52,899 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2018-12-01 18:27:52,953 INFO L216 LassoAnalysis]: Preferences: [2018-12-01 18:27:52,954 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-01 18:27:52,954 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-01 18:27:52,954 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-01 18:27:52,954 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-01 18:27:52,954 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-01 18:27:52,954 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-01 18:27:52,955 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-01 18:27:52,955 INFO L131 ssoRankerPreferences]: Filename of dumped script: wcsrchr_true-termination.c.i_Iteration1_Lasso [2018-12-01 18:27:52,955 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-01 18:27:52,955 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-01 18:27:52,973 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 18:27:52,978 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 18:27:52,979 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 18:27:52,982 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 18:27:52,983 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 18:27:52,984 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 18:27:52,986 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 18:27:52,988 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 18:27:52,990 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 18:27:52,992 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 18:27:53,094 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 18:27:53,096 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 18:27:53,097 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 18:27:53,098 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 18:27:53,311 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-01 18:27:53,315 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-01 18:27:53,316 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 18:27:53,317 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,317 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,317 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,317 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,319 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,319 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,320 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,321 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 18:27:53,321 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,321 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,321 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,321 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,321 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,322 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,322 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,323 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 18:27:53,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,324 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,324 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,324 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,324 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 18:27:53,325 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,325 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,325 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,325 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,325 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,325 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,325 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,326 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,326 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 18:27:53,326 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,327 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,327 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,327 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,328 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,328 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 18:27:53,328 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,328 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,329 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,329 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,329 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,329 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,329 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,330 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,330 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 18:27:53,330 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,330 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,330 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,330 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,332 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,332 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,334 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,334 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 18:27:53,334 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,334 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,334 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,335 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,335 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,336 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,338 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,338 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 18:27:53,338 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,338 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-01 18:27:53,338 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,338 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,339 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,339 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-01 18:27:53,339 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-01 18:27:53,339 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,340 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 18:27:53,340 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,340 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,340 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,340 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,342 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,342 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,352 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,352 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 18:27:53,352 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,353 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-12-01 18:27:53,353 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,353 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,355 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-12-01 18:27:53,355 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,368 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 18:27:53,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,369 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,369 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,369 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,370 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,370 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,371 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,372 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 18:27:53,372 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,372 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,372 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-12-01 18:27:53,372 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,375 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-12-01 18:27:53,375 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-01 18:27:53,391 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,392 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 18:27:53,392 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,392 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,392 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,392 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,393 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,393 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,394 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-01 18:27:53,395 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 18:27:53,395 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-01 18:27:53,395 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-01 18:27:53,395 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-01 18:27:53,395 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-01 18:27:53,397 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-01 18:27:53,397 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-01 18:27:53,418 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-01 18:27:53,437 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2018-12-01 18:27:53,437 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. [2018-12-01 18:27:53,439 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-01 18:27:53,440 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-12-01 18:27:53,440 INFO L518 LassoAnalysis]: Proved termination. [2018-12-01 18:27:53,440 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1, ULTIMATE.start_wcsrchr_~wcs.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc6.base)_1 - 1*ULTIMATE.start_wcsrchr_~wcs.offset Supporting invariants [] [2018-12-01 18:27:53,451 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-12-01 18:27:53,457 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-01 18:27:53,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 18:27:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:27:53,493 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:27:53,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 18:27:53,503 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-01 18:27:53,518 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 18:27:53,528 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-01 18:27:53,529 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2018-12-01 18:27:53,570 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 26 states and 30 transitions. Complement of second has 6 states. [2018-12-01 18:27:53,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-01 18:27:53,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-01 18:27:53,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-12-01 18:27:53,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-01 18:27:53,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:27:53,574 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-01 18:27:53,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:27:53,575 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 8 letters. [2018-12-01 18:27:53,575 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-01 18:27:53,576 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2018-12-01 18:27:53,577 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 18:27:53,578 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2018-12-01 18:27:53,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-01 18:27:53,579 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-01 18:27:53,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-01 18:27:53,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 18:27:53,580 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 18:27:53,580 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 18:27:53,580 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-01 18:27:53,580 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 18:27:53,580 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-01 18:27:53,580 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-01 18:27:53,580 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-01 18:27:53,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 06:27:53 BoogieIcfgContainer [2018-12-01 18:27:53,584 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 18:27:53,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 18:27:53,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 18:27:53,585 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 18:27:53,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:27:52" (3/4) ... [2018-12-01 18:27:53,588 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-01 18:27:53,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 18:27:53,588 INFO L168 Benchmark]: Toolchain (without parser) took 1513.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 69.7 MB). Free memory was 954.9 MB in the beginning and 822.1 MB in the end (delta: 132.8 MB). Peak memory consumption was 202.5 MB. Max. memory is 11.5 GB. [2018-12-01 18:27:53,589 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:27:53,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 69.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -97.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-01 18:27:53,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:27:53,590 INFO L168 Benchmark]: Boogie Preprocessor took 14.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:27:53,590 INFO L168 Benchmark]: RCFGBuilder took 150.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-12-01 18:27:53,591 INFO L168 Benchmark]: BuchiAutomizer took 1063.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 822.1 MB in the end (delta: 210.4 MB). Peak memory consumption was 210.4 MB. Max. memory is 11.5 GB. [2018-12-01 18:27:53,591 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 822.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 18:27:53,593 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.01 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 69.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -97.2 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.28 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 150.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1063.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 822.1 MB in the end (delta: 210.4 MB). Peak memory consumption was 210.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 822.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (in_len*sizeof(int))] + -1 * wcs and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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, 3 SDs, 0 SdLazy, 11 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital137 mio100 ax100 hnf100 lsp95 ukn88 mio100 lsp46 div100 bol100 ite100 ukn100 eq188 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 3 VariablesLoop: 2 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...