./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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 ../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash ccd9175bc78e257bbf4cf5a6f64f3805ac593d6c .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: null --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 03:26:04,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:26:04,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:26:04,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:26:04,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:26:04,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:26:04,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:26:04,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:26:04,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:26:04,999 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:26:05,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:26:05,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:26:05,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:26:05,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:26:05,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:26:05,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:26:05,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:26:05,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:26:05,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:26:05,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:26:05,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:26:05,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:26:05,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:26:05,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:26:05,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:26:05,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:26:05,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:26:05,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:26:05,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:26:05,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:26:05,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:26:05,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:26:05,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:26:05,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:26:05,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:26:05,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:26:05,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:26:05,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:26:05,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:26:05,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:26:05,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:26:05,031 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:26:05,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:26:05,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:26:05,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:26:05,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:26:05,051 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:26:05,052 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:26:05,052 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:26:05,052 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:26:05,052 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:26:05,052 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:26:05,053 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:26:05,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:26:05,053 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:26:05,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:26:05,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:26:05,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:26:05,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:26:05,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:26:05,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:26:05,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:26:05,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:26:05,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:26:05,057 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:26:05,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:26:05,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:26:05,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:26:05,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:26:05,058 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:26:05,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:26:05,058 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:26:05,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:26:05,059 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:26:05,061 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:26:05,062 INFO L138 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ccd9175bc78e257bbf4cf5a6f64f3805ac593d6c [2020-07-29 03:26:05,419 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:26:05,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:26:05,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:26:05,450 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:26:05,450 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:26:05,451 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i [2020-07-29 03:26:05,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1957d9b31/d4f993d3681d44059364de31e4e59442/FLAG1df3df957 [2020-07-29 03:26:06,077 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:26:06,078 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-memsafety/openbsd_cstpncpy-alloca-1.i [2020-07-29 03:26:06,092 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1957d9b31/d4f993d3681d44059364de31e4e59442/FLAG1df3df957 [2020-07-29 03:26:06,400 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1957d9b31/d4f993d3681d44059364de31e4e59442 [2020-07-29 03:26:06,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:26:06,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:26:06,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:26:06,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:26:06,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:26:06,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:26:06" (1/1) ... [2020-07-29 03:26:06,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356bc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:06, skipping insertion in model container [2020-07-29 03:26:06,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:26:06" (1/1) ... [2020-07-29 03:26:06,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:26:06,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:26:07,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:26:07,021 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:26:07,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:26:07,136 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:26:07,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07 WrapperNode [2020-07-29 03:26:07,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:26:07,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:26:07,138 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:26:07,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:26:07,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:26:07,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:26:07,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:26:07,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:26:07,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (1/1) ... [2020-07-29 03:26:07,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:26:07,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:26:07,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:26:07,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:26:07,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (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 [2020-07-29 03:26:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-29 03:26:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-29 03:26:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-29 03:26:07,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-29 03:26:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-29 03:26:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-29 03:26:07,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:26:07,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:26:07,877 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:26:07,877 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-29 03:26:07,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:26:07 BoogieIcfgContainer [2020-07-29 03:26:07,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:26:07,882 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:26:07,882 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:26:07,886 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:26:07,887 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:07,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:26:06" (1/3) ... [2020-07-29 03:26:07,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ac19a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:26:07, skipping insertion in model container [2020-07-29 03:26:07,889 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:07,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:26:07" (2/3) ... [2020-07-29 03:26:07,889 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ac19a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:26:07, skipping insertion in model container [2020-07-29 03:26:07,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:26:07,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:26:07" (3/3) ... [2020-07-29 03:26:07,892 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstpncpy-alloca-1.i [2020-07-29 03:26:07,948 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:26:07,948 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:26:07,948 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:26:07,949 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:26:07,949 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:26:07,949 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:26:07,950 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:26:07,950 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:26:07,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 03:26:07,999 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-29 03:26:07,999 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:07,999 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:08,007 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 03:26:08,007 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 03:26:08,007 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:26:08,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 03:26:08,012 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-29 03:26:08,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:08,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:08,013 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-07-29 03:26:08,013 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 03:26:08,023 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 7#L534true assume !(main_~length~0 < 1); 10#L534-2true assume !(main_~n~0 < 1); 6#L537-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 16#L543-3true [2020-07-29 03:26:08,024 INFO L796 eck$LassoCheckResult]: Loop: 16#L543-3true assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; 14#L543-2true main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; 16#L543-3true [2020-07-29 03:26:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:08,031 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-07-29 03:26:08,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:08,043 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780835899] [2020-07-29 03:26:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,176 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:08,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-07-29 03:26:08,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:08,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074327058] [2020-07-29 03:26:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,215 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,226 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:08,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:08,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-07-29 03:26:08,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:08,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403728534] [2020-07-29 03:26:08,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:08,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,298 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:08,324 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:08,331 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:26:08,645 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-07-29 03:26:08,782 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:26:08,783 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:26:08,783 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:26:08,784 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:26:08,784 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 03:26:08,784 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:08,785 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:26:08,785 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:26:08,785 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstpncpy-alloca-1.i_Iteration1_Lasso [2020-07-29 03:26:08,785 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:26:08,786 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:26:08,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,900 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:08,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:09,088 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-07-29 03:26:09,124 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:09,130 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:09,135 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:26:09,803 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:26:09,808 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:09,813 INFO L120 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 [2020-07-29 03:26:09,818 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:09,819 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:09,820 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:09,820 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:09,820 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:09,823 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:09,833 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:09,840 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:09,865 INFO L120 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 [2020-07-29 03:26:09,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:09,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:09,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:09,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:09,882 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:09,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:09,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:09,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:09,912 INFO L120 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 [2020-07-29 03:26:09,913 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:09,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:09,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:09,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:09,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:09,915 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:09,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:09,917 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:09,939 INFO L120 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 [2020-07-29 03:26:09,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:09,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:09,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:09,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:09,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:09,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:09,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:09,950 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:09,974 INFO L120 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 [2020-07-29 03:26:09,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:09,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:09,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:09,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:09,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:09,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:09,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,033 INFO L120 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 [2020-07-29 03:26:10,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,039 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,040 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,044 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,078 INFO L120 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 [2020-07-29 03:26:10,080 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,080 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:10,080 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,080 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,081 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,081 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:10,081 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:26:10,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,144 INFO L120 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 [2020-07-29 03:26:10,146 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,146 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,146 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,146 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,149 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,149 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,185 INFO L120 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 [2020-07-29 03:26:10,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,188 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,194 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,195 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,235 INFO L120 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 [2020-07-29 03:26:10,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,237 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,237 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,240 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,244 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,270 INFO L120 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 [2020-07-29 03:26:10,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,276 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,276 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,287 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,323 INFO L120 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 [2020-07-29 03:26:10,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,328 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,328 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 03:26:10,336 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:26:10,378 INFO L120 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 [2020-07-29 03:26:10,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,380 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:26:10,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,381 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:26:10,381 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,385 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:26:10,418 INFO L120 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 [2020-07-29 03:26:10,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:26:10,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:26:10,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:26:10,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:26:10,426 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 03:26:10,426 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 03:26:10,598 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-07-29 03:26:10,599 INFO L444 ModelExtractionUtils]: 6 out of 22 variables were initially zero. Simplification set additionally 13 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:26:10,609 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 03:26:10,612 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-07-29 03:26:10,613 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 03:26:10,614 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length~0 Supporting invariants [] [2020-07-29 03:26:10,672 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2020-07-29 03:26:10,676 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16;" "main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15;" [2020-07-29 03:26:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:10,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 03:26:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:10,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:10,747 INFO L280 TraceCheckUtils]: 0: Hoare triple {30#unseeded} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {30#unseeded} is VALID [2020-07-29 03:26:10,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {30#unseeded} havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; {30#unseeded} is VALID [2020-07-29 03:26:10,749 INFO L280 TraceCheckUtils]: 2: Hoare triple {30#unseeded} assume !(main_~length~0 < 1); {30#unseeded} is VALID [2020-07-29 03:26:10,750 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#unseeded} assume !(main_~n~0 < 1); {30#unseeded} is VALID [2020-07-29 03:26:10,751 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#unseeded} call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; {30#unseeded} is VALID [2020-07-29 03:26:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:10,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 03:26:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:26:10,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:26:10,783 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#(>= oldRank0 (+ (* (- 1) ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~length~0))} assume !!(main_~i~0 < main_~length~0 - 1);call write~int(main_#t~nondet16, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet16; {90#(and (<= ULTIMATE.start_main_~length~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~length~0))} is VALID [2020-07-29 03:26:10,784 INFO L280 TraceCheckUtils]: 1: Hoare triple {90#(and (<= ULTIMATE.start_main_~length~0 (+ oldRank0 ULTIMATE.start_main_~i~0)) (< (+ ULTIMATE.start_main_~i~0 1) ULTIMATE.start_main_~length~0))} main_#t~post15 := main_~i~0;main_~i~0 := 1 + main_#t~post15;havoc main_#t~post15; {73#(or (and (>= oldRank0 0) (> oldRank0 (+ (* (- 1) ULTIMATE.start_main_~i~0) ULTIMATE.start_main_~length~0))) unseeded)} is VALID [2020-07-29 03:26:10,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 03:26:10,796 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 03:26:10,810 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:26:10,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:10,816 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:10,823 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 [2020-07-29 03:26:10,825 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states. Second operand 3 states. [2020-07-29 03:26:10,995 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states.. Second operand 3 states. Result 48 states and 70 transitions. Complement of second has 7 states. [2020-07-29 03:26:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 03:26:10,996 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:10,996 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2020-07-29 03:26:11,000 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-29 03:26:11,000 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:11,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:11,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 03:26:11,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 03:26:11,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:11,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:11,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 70 transitions. [2020-07-29 03:26:11,010 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-29 03:26:11,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:11,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:11,013 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 20 states. [2020-07-29 03:26:11,016 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 8 [2020-07-29 03:26:11,019 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 8 examples of accepted words. [2020-07-29 03:26:11,020 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 03:26:11,024 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 03:26:11,025 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 03:26:11,025 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 48 states and 70 transitions. cyclomatic complexity: 29 [2020-07-29 03:26:11,027 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 6 examples of accepted words. [2020-07-29 03:26:11,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,029 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,030 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,030 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,031 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,031 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,032 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 48 letters. Loop has 48 letters. [2020-07-29 03:26:11,032 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 48 letters. Loop has 48 letters. [2020-07-29 03:26:11,033 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,033 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 48 letters. Loop has 48 letters. [2020-07-29 03:26:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 03:26:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,034 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 20 letters. Loop has 20 letters. [2020-07-29 03:26:11,034 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 20 letters. Loop has 20 letters. [2020-07-29 03:26:11,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:11,035 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:11,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 5 letters. Loop has 5 letters. [2020-07-29 03:26:11,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,036 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,038 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,038 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,039 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,039 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,040 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,040 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,041 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,041 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,042 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,042 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,043 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,043 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,044 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,044 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,045 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 03:26:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 6 letters. Loop has 2 letters. [2020-07-29 03:26:11,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 6 letters. Loop has 2 letters. [2020-07-29 03:26:11,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 03:26:11,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,049 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 03:26:11,049 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 2 letters. Loop has 1 letters. [2020-07-29 03:26:11,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,050 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,050 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 1 letters. Loop has 2 letters. [2020-07-29 03:26:11,051 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,051 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,052 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,052 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 11 letters. Loop has 2 letters. [2020-07-29 03:26:11,053 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,053 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,054 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,054 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 10 letters. Loop has 2 letters. [2020-07-29 03:26:11,055 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,055 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,058 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 10 letters. Loop has 4 letters. [2020-07-29 03:26:11,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,061 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,062 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 8 letters. Loop has 4 letters. [2020-07-29 03:26:11,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,066 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,066 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 11 letters. Loop has 4 letters. [2020-07-29 03:26:11,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,067 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 20 states. Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,067 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,068 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,068 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,070 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 48 states and 70 transitions. cyclomatic complexity: 29 Stem has 9 letters. Loop has 4 letters. [2020-07-29 03:26:11,070 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,071 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:26:11,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 03:26:11,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-29 03:26:11,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 2 letters. [2020-07-29 03:26:11,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,081 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 7 letters. Loop has 2 letters. [2020-07-29 03:26:11,082 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,083 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 47 transitions. Stem has 5 letters. Loop has 4 letters. [2020-07-29 03:26:11,083 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:26:11,086 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 70 transitions. cyclomatic complexity: 29 [2020-07-29 03:26:11,097 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-29 03:26:11,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 16 states and 21 transitions. [2020-07-29 03:26:11,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2020-07-29 03:26:11,108 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2020-07-29 03:26:11,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 21 transitions. [2020-07-29 03:26:11,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:26:11,110 INFO L688 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-07-29 03:26:11,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 21 transitions. [2020-07-29 03:26:11,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-29 03:26:11,143 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:26:11,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states and 21 transitions. Second operand 16 states. [2020-07-29 03:26:11,144 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states and 21 transitions. Second operand 16 states. [2020-07-29 03:26:11,147 INFO L87 Difference]: Start difference. First operand 16 states and 21 transitions. Second operand 16 states. [2020-07-29 03:26:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:11,153 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2020-07-29 03:26:11,154 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-07-29 03:26:11,155 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:11,156 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:11,156 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states and 21 transitions. [2020-07-29 03:26:11,156 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states and 21 transitions. [2020-07-29 03:26:11,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:26:11,160 INFO L93 Difference]: Finished difference Result 16 states and 21 transitions. [2020-07-29 03:26:11,160 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2020-07-29 03:26:11,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:26:11,161 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:26:11,161 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:26:11,161 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:26:11,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-29 03:26:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2020-07-29 03:26:11,164 INFO L711 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-07-29 03:26:11,165 INFO L591 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2020-07-29 03:26:11,165 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:26:11,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2020-07-29 03:26:11,167 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-07-29 03:26:11,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:26:11,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:26:11,170 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:26:11,170 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-07-29 03:26:11,171 INFO L794 eck$LassoCheckResult]: Stem: 163#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 161#L-1 havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet16, main_#t~post15, main_~i~0, main_#t~ret17.base, main_#t~ret17.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~n~0 := main_#t~nondet12;havoc main_#t~nondet12; 157#L534 assume !(main_~length~0 < 1); 158#L534-2 assume !(main_~n~0 < 1); 155#L537-1 call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;main_~i~0 := 0; 156#L543-3 assume !(main_~i~0 < main_~length~0 - 1); 167#L543-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_#in~src.base, cstpncpy_#in~src.offset, cstpncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstpncpy_#res.base, cstpncpy_#res.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset, cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, cstpncpy_#t~mem7, cstpncpy_#t~post9.base, cstpncpy_#t~post9.offset, cstpncpy_#t~pre8, cstpncpy_#t~pre4, cstpncpy_~d~0.base, cstpncpy_~d~0.offset, cstpncpy_~s~0.base, cstpncpy_~s~0.offset, cstpncpy_#t~mem10.base, cstpncpy_#t~mem10.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, cstpncpy_~src.base, cstpncpy_~src.offset, cstpncpy_~n;call cstpncpy_~#dst.base, cstpncpy_~#dst.offset := #Ultimate.allocOnStack(4);call write~$Pointer$(cstpncpy_#in~dst.base, cstpncpy_#in~dst.offset, cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~src.base, cstpncpy_~src.offset := cstpncpy_#in~src.base, cstpncpy_#in~src.offset;cstpncpy_~n := cstpncpy_#in~n; 152#L516 assume 0 != cstpncpy_~n % 4294967296;call cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;havoc cstpncpy_#t~mem2.base, cstpncpy_#t~mem2.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_~src.base, cstpncpy_~src.offset;call cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset := read~$Pointer$(cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);call write~$Pointer$(cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset + (if cstpncpy_~n % 4294967296 % 4294967296 <= 2147483647 then cstpncpy_~n % 4294967296 % 4294967296 else cstpncpy_~n % 4294967296 % 4294967296 - 4294967296), cstpncpy_~#dst.base, cstpncpy_~#dst.offset, 4);havoc cstpncpy_#t~mem3.base, cstpncpy_#t~mem3.offset; 153#L520-4 [2020-07-29 03:26:11,171 INFO L796 eck$LassoCheckResult]: Loop: 153#L520-4 cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset := cstpncpy_~d~0.base, cstpncpy_~d~0.offset;cstpncpy_~d~0.base, cstpncpy_~d~0.offset := cstpncpy_#t~post5.base, 1 + cstpncpy_#t~post5.offset;cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset := cstpncpy_~s~0.base, cstpncpy_~s~0.offset;cstpncpy_~s~0.base, cstpncpy_~s~0.offset := cstpncpy_#t~post6.base, 1 + cstpncpy_#t~post6.offset;call cstpncpy_#t~mem7 := read~int(cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset, 1);call write~int(cstpncpy_#t~mem7, cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset, 1); 154#L521 assume !(0 == cstpncpy_#t~mem7);havoc cstpncpy_#t~post5.base, cstpncpy_#t~post5.offset;havoc cstpncpy_#t~mem7;havoc cstpncpy_#t~post6.base, cstpncpy_#t~post6.offset; 162#L520-1 cstpncpy_#t~pre4 := cstpncpy_~n - 1;cstpncpy_~n := cstpncpy_~n - 1; 166#L520-2 assume !!(0 != cstpncpy_#t~pre4 % 4294967296);havoc cstpncpy_#t~pre4; 153#L520-4 [2020-07-29 03:26:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:26:11,173 INFO L82 PathProgramCache]: Analyzing trace with hash 180430706, now seen corresponding path program 1 times [2020-07-29 03:26:11,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:26:11,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216803404] [2020-07-29 03:26:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:26:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:11,287 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:26:11,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:26:11,365 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.add(ModelBuilder.java:123) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.fillInFunctions(ModelBuilder.java:109) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.ModelBuilder.(ModelBuilder.java:49) at de.uni_freiburg.informatik.ultimate.smtinterpol.theory.cclosure.CClosure.fillInModel(CClosure.java:1312) at de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.(Model.java:120) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.buildModel(SMTInterpol.java:1139) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getValue(SMTInterpol.java:1004) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getValue(WrapperScript.java:193) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.getValues(SmtUtils.java:2112) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.getValue(TraceCheck.java:401) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.lambda$0(TraceCheck.java:375) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecution(TraceCheck.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:343) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:223) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.computeRcfgProgramExecutionAndDecodeBranches(TraceCheck.java:337) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:223) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:242) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:75) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkFeasibilityAndComputeInterpolants(LassoCheck.java:928) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkStemFeasibility(LassoCheck.java:883) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:797) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:458) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:380) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:317) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2020-07-29 03:26:11,370 INFO L168 Benchmark]: Toolchain (without parser) took 4965.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 217.1 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 78.0 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:11,370 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:26:11,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:11,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.95 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. [2020-07-29 03:26:11,373 INFO L168 Benchmark]: Boogie Preprocessor took 58.89 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. [2020-07-29 03:26:11,374 INFO L168 Benchmark]: RCFGBuilder took 622.29 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:11,375 INFO L168 Benchmark]: BuchiAutomizer took 3485.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -8.7 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. [2020-07-29 03:26:11,378 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 730.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -167.9 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.95 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. * Boogie Preprocessor took 58.89 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 622.29 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3485.78 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -8.7 MB). Peak memory consumption was 57.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: null: de.uni_freiburg.informatik.ultimate.smtinterpol.model.Model.map(Model.java:227) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...