./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-dietlibc/stpcpy.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/termination-dietlibc/stpcpy.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 469311c0017f986a05caefa2da4fc5bc0c8b955df01c1466f03ef72ee537722c --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:23:00,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:23:00,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:23:00,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:23:00,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:23:00,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:23:00,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:23:00,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:23:00,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:23:00,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:23:00,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:23:00,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:23:00,189 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:23:00,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:23:00,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:23:00,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:23:00,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:23:00,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:23:00,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:23:00,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:23:00,207 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:23:00,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:23:00,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:23:00,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:23:00,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:23:00,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:23:00,219 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:23:00,220 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:23:00,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:23:00,222 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:23:00,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:23:00,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:23:00,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:23:00,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:23:00,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:23:00,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:23:00,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:23:00,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:23:00,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:23:00,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:23:00,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:23:00,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:23:00,233 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:23:00,256 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:23:00,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:23:00,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:23:00,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:23:00,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:23:00,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:23:00,260 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:23:00,260 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:23:00,260 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:23:00,261 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:23:00,262 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:23:00,262 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:23:00,262 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:23:00,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:23:00,262 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:23:00,262 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:23:00,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:23:00,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:23:00,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:23:00,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:23:00,263 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:23:00,264 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:23:00,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:23:00,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:23:00,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:23:00,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:23:00,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:23:00,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:23:00,266 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:23:00,266 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 469311c0017f986a05caefa2da4fc5bc0c8b955df01c1466f03ef72ee537722c [2022-07-23 14:23:00,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:23:00,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:23:00,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:23:00,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:23:00,518 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:23:00,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/stpcpy.i [2022-07-23 14:23:00,593 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b32cd4d9/0b0b3821dc04451db00eb00e1ccfa66e/FLAG3a3b1e8a8 [2022-07-23 14:23:00,976 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:23:00,977 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/stpcpy.i [2022-07-23 14:23:00,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b32cd4d9/0b0b3821dc04451db00eb00e1ccfa66e/FLAG3a3b1e8a8 [2022-07-23 14:23:01,369 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b32cd4d9/0b0b3821dc04451db00eb00e1ccfa66e [2022-07-23 14:23:01,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:23:01,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:23:01,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:23:01,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:23:01,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:23:01,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482cfb8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01, skipping insertion in model container [2022-07-23 14:23:01,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:23:01,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:23:01,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:23:01,666 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:23:01,695 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:23:01,717 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:23:01,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01 WrapperNode [2022-07-23 14:23:01,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:23:01,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:23:01,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:23:01,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:23:01,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,760 INFO L137 Inliner]: procedures = 113, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-07-23 14:23:01,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:23:01,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:23:01,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:23:01,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:23:01,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:23:01,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:23:01,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:23:01,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:23:01,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (1/1) ... [2022-07-23 14:23:01,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:23:01,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:23:01,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:23:01,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-23 14:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:23:01,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:23:01,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:23:01,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:23:01,913 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:23:01,914 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:23:02,005 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:23:02,010 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:23:02,010 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:23:02,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:23:02 BoogieIcfgContainer [2022-07-23 14:23:02,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:23:02,013 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:23:02,013 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:23:02,016 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:23:02,017 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:23:02,017 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:23:01" (1/3) ... [2022-07-23 14:23:02,018 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d96ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:23:02, skipping insertion in model container [2022-07-23 14:23:02,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:23:02,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:23:01" (2/3) ... [2022-07-23 14:23:02,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8d96ea6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:23:02, skipping insertion in model container [2022-07-23 14:23:02,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:23:02,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:23:02" (3/3) ... [2022-07-23 14:23:02,020 INFO L354 chiAutomizerObserver]: Analyzing ICFG stpcpy.i [2022-07-23 14:23:02,066 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:23:02,066 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:23:02,066 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:23:02,066 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:23:02,066 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:23:02,066 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:23:02,067 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:23:02,067 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:23:02,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:23:02,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:23:02,101 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:23:02,101 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:23:02,106 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:23:02,106 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:23:02,106 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:23:02,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:23:02,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 14:23:02,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:23:02,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:23:02,124 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-23 14:23:02,124 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 14:23:02,130 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~malloc6#1.base, main_#t~malloc6#1.offset, main_#t~nondet7#1, main_#t~malloc8#1.base, main_#t~malloc8#1.offset, main_#t~ret9#1.base, main_#t~ret9#1.offset, main_~in_len~0#1, main_~in~0#1.base, main_~in~0#1.offset, main_~out_len~0#1, main_~out~0#1.base, main_~out~0#1.offset;main_~in_len~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1; 8#L512true assume !(main_~in_len~0#1 < 1);call main_#t~malloc6#1.base, main_#t~malloc6#1.offset := #Ultimate.allocOnStack(main_~in_len~0#1);main_~in~0#1.base, main_~in~0#1.offset := main_#t~malloc6#1.base, main_#t~malloc6#1.offset;call write~int(0, main_~in~0#1.base, main_~in~0#1.offset + (main_~in_len~0#1 - 1), 1);main_~out_len~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 10#L516true assume !(main_~out_len~0#1 < main_~in_len~0#1);call main_#t~malloc8#1.base, main_#t~malloc8#1.offset := #Ultimate.allocOnStack(main_~out_len~0#1);main_~out~0#1.base, main_~out~0#1.offset := main_#t~malloc8#1.base, main_#t~malloc8#1.offset;assume { :begin_inline_stpcpy } true;stpcpy_#in~dst#1.base, stpcpy_#in~dst#1.offset, stpcpy_#in~src#1.base, stpcpy_#in~src#1.offset := main_~out~0#1.base, main_~out~0#1.offset, main_~in~0#1.base, main_~in~0#1.offset;havoc stpcpy_#res#1.base, stpcpy_#res#1.offset;havoc stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset, stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset, stpcpy_#t~mem4#1, stpcpy_~dst#1.base, stpcpy_~dst#1.offset, stpcpy_~src#1.base, stpcpy_~src#1.offset;stpcpy_~dst#1.base, stpcpy_~dst#1.offset := stpcpy_#in~dst#1.base, stpcpy_#in~dst#1.offset;stpcpy_~src#1.base, stpcpy_~src#1.offset := stpcpy_#in~src#1.base, stpcpy_#in~src#1.offset; 11#L507-3true [2022-07-23 14:23:02,130 INFO L754 eck$LassoCheckResult]: Loop: 11#L507-3true stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset := stpcpy_~dst#1.base, stpcpy_~dst#1.offset;stpcpy_~dst#1.base, stpcpy_~dst#1.offset := stpcpy_#t~post2#1.base, 1 + stpcpy_#t~post2#1.offset;stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset := stpcpy_~src#1.base, stpcpy_~src#1.offset;stpcpy_~src#1.base, stpcpy_~src#1.offset := stpcpy_#t~post3#1.base, 1 + stpcpy_#t~post3#1.offset;call stpcpy_#t~mem4#1 := read~int(stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset, 1);call write~int(stpcpy_#t~mem4#1, stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset, 1); 5#L507-1true assume !!(0 != stpcpy_#t~mem4#1);havoc stpcpy_#t~post2#1.base, stpcpy_#t~post2#1.offset;havoc stpcpy_#t~post3#1.base, stpcpy_#t~post3#1.offset;havoc stpcpy_#t~mem4#1; 11#L507-3true [2022-07-23 14:23:02,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:23:02,136 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-07-23 14:23:02,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:23:02,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013951427] [2022-07-23 14:23:02,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:23:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:23:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,338 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:23:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:23:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:23:02,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1510, now seen corresponding path program 1 times [2022-07-23 14:23:02,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:23:02,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143557694] [2022-07-23 14:23:02,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:23:02,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:23:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,448 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:23:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:23:02,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:23:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2022-07-23 14:23:02,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:23:02,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225147791] [2022-07-23 14:23:02,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:23:02,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:23:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,519 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:23:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:23:02,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:23:03,242 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:23:03,243 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:23:03,243 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:23:03,243 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:23:03,244 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:23:03,244 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:23:03,244 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:23:03,244 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:23:03,244 INFO L133 ssoRankerPreferences]: Filename of dumped script: stpcpy.i_Iteration1_Lasso [2022-07-23 14:23:03,244 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:23:03,245 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:23:03,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:23:03,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:23:03,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:23:03,272 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:23:03,571 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.IllegalArgumentException at de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) at java.base/java.util.AbstractMap.putAll(AbstractMap.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.PureSubstitution.(PureSubstitution.java:81) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.(Substitution.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.Substitution.apply(Substitution.java:59) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.replaceMapReads(MapEliminator.java:518) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:342) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:111) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:280) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:601) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:914) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:823) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:247) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.cegar.AbstractBuchiCegarLoop.runCegarLoop(AbstractBuchiCegarLoop.java:310) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:146) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:363) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-23 14:23:03,577 INFO L158 Benchmark]: Toolchain (without parser) took 2203.14ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 70.3MB in the beginning and 62.5MB in the end (delta: 7.8MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,578 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:23:03,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.04ms. Allocated memory is still 92.3MB. Free memory was 70.0MB in the beginning and 60.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.04ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,581 INFO L158 Benchmark]: Boogie Preprocessor took 24.66ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 57.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,582 INFO L158 Benchmark]: RCFGBuilder took 225.43ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 47.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,583 INFO L158 Benchmark]: BuchiAutomizer took 1561.58ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 47.0MB in the beginning and 62.5MB in the end (delta: -15.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2022-07-23 14:23:03,590 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 92.3MB. Free memory is still 67.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.04ms. Allocated memory is still 92.3MB. Free memory was 70.0MB in the beginning and 60.3MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.04ms. Allocated memory is still 92.3MB. Free memory was 60.3MB in the beginning and 58.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.66ms. Allocated memory is still 92.3MB. Free memory was 58.3MB in the beginning and 57.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 225.43ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 47.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1561.58ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 47.0MB in the beginning and 62.5MB in the end (delta: -15.5MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: IllegalArgumentException: null de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: IllegalArgumentException: null: de.uni_freiburg.informatik.ultimate.util.datastructures.ScopedHashMap.put(ScopedHashMap.java:331) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-23 14:23:03,634 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalArgumentException: null