./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-15/cstrchr_malloc_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-15/cstrchr_malloc_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 52f90dd69b1856f1819dcbf79b462fc94a85a38d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:23:04,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:23:04,018 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:23:04,035 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:23:04,036 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:23:04,037 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:23:04,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:23:04,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:23:04,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:23:04,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:23:04,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:23:04,057 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:23:04,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:23:04,061 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:23:04,069 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:23:04,070 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:23:04,071 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:23:04,074 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:23:04,077 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:23:04,081 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:23:04,083 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:23:04,086 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:23:04,089 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:23:04,091 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:23:04,091 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:23:04,092 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:23:04,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:23:04,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:23:04,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:23:04,100 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:23:04,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:23:04,100 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:23:04,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:23:04,101 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:23:04,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:23:04,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:23:04,105 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:23:04,128 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:23:04,129 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:23:04,130 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:23:04,130 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:23:04,130 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:23:04,131 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:23:04,131 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:23:04,131 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:23:04,132 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:23:04,132 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:23:04,132 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:23:04,132 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:23:04,132 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:23:04,132 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:23:04,133 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:23:04,135 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:23:04,135 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:23:04,135 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:23:04,136 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:23:04,136 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:23:04,136 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:23:04,136 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:23:04,138 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:23:04,138 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 52f90dd69b1856f1819dcbf79b462fc94a85a38d [2018-11-28 23:23:04,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:23:04,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:23:04,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:23:04,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:23:04,208 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:23:04,212 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-15/cstrchr_malloc_true-termination.c.i [2018-11-28 23:23:04,272 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5299cd0/8d8a6d40a3cf41ec89a6f5fbe1645d99/FLAGa97755775 [2018-11-28 23:23:04,783 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:23:04,784 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-15/cstrchr_malloc_true-termination.c.i [2018-11-28 23:23:04,794 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5299cd0/8d8a6d40a3cf41ec89a6f5fbe1645d99/FLAGa97755775 [2018-11-28 23:23:05,079 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec5299cd0/8d8a6d40a3cf41ec89a6f5fbe1645d99 [2018-11-28 23:23:05,083 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:23:05,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:23:05,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:23:05,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:23:05,089 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:23:05,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2427da0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05, skipping insertion in model container [2018-11-28 23:23:05,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:23:05,151 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:23:05,572 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:23:05,583 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:23:05,626 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:23:05,792 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:23:05,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05 WrapperNode [2018-11-28 23:23:05,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:23:05,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:23:05,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:23:05,794 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:23:05,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:23:05,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:23:05,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:23:05,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:23:05,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... [2018-11-28 23:23:05,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:23:05,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:23:05,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:23:05,883 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:23:05,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:23:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:23:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:23:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:23:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:23:05,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:23:05,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:23:06,297 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:23:06,298 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 23:23:06,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:23:06 BoogieIcfgContainer [2018-11-28 23:23:06,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:23:06,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:23:06,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:23:06,303 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:23:06,304 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:23:06,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:23:05" (1/3) ... [2018-11-28 23:23:06,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2efbca22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:23:06, skipping insertion in model container [2018-11-28 23:23:06,306 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:23:06,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:23:05" (2/3) ... [2018-11-28 23:23:06,306 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2efbca22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:23:06, skipping insertion in model container [2018-11-28 23:23:06,306 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:23:06,307 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:23:06" (3/3) ... [2018-11-28 23:23:06,308 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrchr_malloc_true-termination.c.i [2018-11-28 23:23:06,395 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:23:06,396 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:23:06,396 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:23:06,397 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:23:06,397 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:23:06,397 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:23:06,397 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:23:06,397 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:23:06,397 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:23:06,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:23:06,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:23:06,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:23:06,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:23:06,441 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:23:06,442 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:23:06,442 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:23:06,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:23:06,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:23:06,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:23:06,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:23:06,444 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:23:06,445 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:23:06,452 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 8#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 9#L366-5true [2018-11-28 23:23:06,453 INFO L796 eck$LassoCheckResult]: Loop: 9#L366-5true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 4#L366-1true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 6#L366-3true assume !!cstrchr_#t~short207;havoc cstrchr_#t~mem206;havoc cstrchr_#t~short207;havoc cstrchr_#t~mem205;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, 1 + cstrchr_#t~post208.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 9#L366-5true [2018-11-28 23:23:06,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:23:06,459 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2018-11-28 23:23:06,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:23:06,461 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:23:06,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:23:06,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:06,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:23:06,602 INFO L82 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2018-11-28 23:23:06,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:23:06,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:23:06,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:23:06,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:06,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:06,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:23:06,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2018-11-28 23:23:06,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:23:06,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:23:06,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:23:06,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:23:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:23:07,030 WARN L180 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2018-11-28 23:23:07,555 WARN L180 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-28 23:23:07,930 WARN L180 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2018-11-28 23:23:08,286 WARN L180 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-11-28 23:23:08,297 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:23:08,299 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:23:08,299 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:23:08,299 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:23:08,300 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:23:08,300 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:23:08,300 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:23:08,300 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:23:08,300 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_malloc_true-termination.c.i_Iteration1_Lasso [2018-11-28 23:23:08,301 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:23:08,302 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:23:08,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,364 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,550 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2018-11-28 23:23:08,745 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-11-28 23:23:08,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,757 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:08,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:23:09,343 WARN L180 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 23:23:09,664 WARN L180 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-11-28 23:23:09,744 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:23:09,751 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:23:09,754 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 [2018-11-28 23:23:09,756 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,756 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,758 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,758 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,758 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,761 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,761 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,765 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,766 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 [2018-11-28 23:23:09,766 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,767 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,767 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,767 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,767 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,769 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,769 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,770 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,771 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 [2018-11-28 23:23:09,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,772 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,772 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,772 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,777 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:23:09,777 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:23:09,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,782 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 [2018-11-28 23:23:09,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,784 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,785 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,785 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,786 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,787 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 [2018-11-28 23:23:09,788 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,788 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,788 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,790 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,790 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,791 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,791 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,792 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 [2018-11-28 23:23:09,793 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,794 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,794 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,794 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,794 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,797 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,798 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 [2018-11-28 23:23:09,798 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,799 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:23:09,799 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,799 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,799 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,800 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:23:09,800 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:23:09,802 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,803 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 [2018-11-28 23:23:09,804 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,805 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,805 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,805 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,808 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:23:09,808 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:23:09,813 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,814 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 [2018-11-28 23:23:09,814 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,815 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 23:23:09,815 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,815 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,821 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 23:23:09,822 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:23:09,867 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,868 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 [2018-11-28 23:23:09,870 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,870 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:09,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,874 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:23:09,874 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:23:09,889 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:09,890 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 [2018-11-28 23:23:09,890 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:09,892 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:09,892 INFO L206 nArgumentSynthesizer]: 6 loop disjuncts [2018-11-28 23:23:09,892 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:09,942 INFO L402 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2018-11-28 23:23:09,942 INFO L403 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2018-11-28 23:23:10,186 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:23:10,187 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 [2018-11-28 23:23:10,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:23:10,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:23:10,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:23:10,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:23:10,193 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:23:10,194 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:23:10,232 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:23:10,274 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:23:10,274 INFO L444 ModelExtractionUtils]: 19 out of 25 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:23:10,277 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:23:10,278 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 23:23:10,279 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:23:10,280 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc212.base)_1 Supporting invariants [] [2018-11-28 23:23:10,385 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2018-11-28 23:23:10,418 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 23:23:10,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:23:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:23:10,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:23:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:23:10,542 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:23:10,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:23:10,610 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 [2018-11-28 23:23:10,612 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-28 23:23:10,719 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 31 states and 39 transitions. Complement of second has 5 states. [2018-11-28 23:23:10,721 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 [2018-11-28 23:23:10,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:23:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-28 23:23:10,726 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-28 23:23:10,727 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:23:10,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-28 23:23:10,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:23:10,728 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-28 23:23:10,728 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:23:10,729 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2018-11-28 23:23:10,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:23:10,736 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2018-11-28 23:23:10,737 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:23:10,737 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:23:10,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:23:10,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:23:10,738 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:23:10,738 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:23:10,738 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:23:10,738 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:23:10,739 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:23:10,739 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:23:10,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:23:10,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:23:10 BoogieIcfgContainer [2018-11-28 23:23:10,746 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:23:10,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:23:10,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:23:10,747 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:23:10,748 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:23:06" (3/4) ... [2018-11-28 23:23:10,752 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:23:10,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:23:10,753 INFO L168 Benchmark]: Toolchain (without parser) took 5669.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.3 MB in the beginning and 835.0 MB in the end (delta: 112.3 MB). Peak memory consumption was 255.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:23:10,754 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:23:10,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:23:10,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.87 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:23:10,757 INFO L168 Benchmark]: Boogie Preprocessor took 27.08 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. [2018-11-28 23:23:10,758 INFO L168 Benchmark]: RCFGBuilder took 415.56 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:23:10,758 INFO L168 Benchmark]: BuchiAutomizer took 4447.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.0 MB in the end (delta: 270.9 MB). Peak memory consumption was 270.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:23:10,759 INFO L168 Benchmark]: Witness Printer took 5.48 ms. Allocated memory is still 1.2 GB. Free memory is still 835.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:23:10,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 708.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -189.8 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.87 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.08 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 415.56 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4447.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 835.0 MB in the end (delta: 270.9 MB). Peak memory consumption was 270.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.48 ms. Allocated memory is still 1.2 GB. Free memory is still 835.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + unknown-#length-unknown[malloc(length * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.9s. 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: 12 SDtfs, 25 SDslu, 7 SDs, 0 SdLazy, 9 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital177 mio100 ax100 hnf98 lsp98 ukn70 mio100 lsp34 div169 bol100 ite100 ukn100 eq153 hnf65 smp100 dnf873 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 296ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...