./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ce492abcc29ddbc9795671b095b6bfaf5bfc547b ............................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:17:42,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:17:42,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:17:42,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:17:42,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:17:42,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:17:42,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:17:42,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:17:42,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:17:42,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:17:42,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:17:42,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:17:42,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:17:42,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:17:42,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:17:42,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:17:42,880 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:17:42,881 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:17:42,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:17:42,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:17:42,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:17:42,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:17:42,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:17:42,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:17:42,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:17:42,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:17:42,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:17:42,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:17:42,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:17:42,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:17:42,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:17:42,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:17:42,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:17:42,896 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:17:42,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:17:42,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:17:42,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:17:42,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:17:42,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:17:42,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:17:42,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:17:42,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-10-20 06:17:42,930 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:17:42,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:17:42,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:17:42,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:17:42,932 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:17:42,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:17:42,933 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:17:42,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:17:42,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:17:42,934 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:17:42,934 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:17:42,934 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:17:42,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:17:42,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:17:42,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:17:42,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:17:42,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:17:42,936 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:17:42,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:17:42,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:17:42,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:17:42,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:17:42,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:17:42,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:17:42,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:17:42,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> ce492abcc29ddbc9795671b095b6bfaf5bfc547b [2020-10-20 06:17:43,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:17:43,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:17:43,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:17:43,172 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:17:43,174 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:17:43,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2020-10-20 06:17:43,248 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca38b32b/826280c72e6f4a8d977790b35496b8bc/FLAGcc6740851 [2020-10-20 06:17:43,710 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:17:43,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2020-10-20 06:17:43,718 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca38b32b/826280c72e6f4a8d977790b35496b8bc/FLAGcc6740851 [2020-10-20 06:17:44,097 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca38b32b/826280c72e6f4a8d977790b35496b8bc [2020-10-20 06:17:44,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:17:44,107 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:17:44,108 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:17:44,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:17:44,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:17:44,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b735c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44, skipping insertion in model container [2020-10-20 06:17:44,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:17:44,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:17:44,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:17:44,393 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:17:44,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:17:44,420 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:17:44,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44 WrapperNode [2020-10-20 06:17:44,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:17:44,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:17:44,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:17:44,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:17:44,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (1/1) ... [2020-10-20 06:17:44,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:17:44,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:17:44,447 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:17:44,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:17:44,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:17:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:17:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:17:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2020-10-20 06:17:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2020-10-20 06:17:44,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:17:44,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:17:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2020-10-20 06:17:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2020-10-20 06:17:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:17:44,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:17:44,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:17:44,716 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:17:44,717 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-20 06:17:44,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:17:44 BoogieIcfgContainer [2020-10-20 06:17:44,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:17:44,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:17:44,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:17:44,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:17:44,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:17:44" (1/3) ... [2020-10-20 06:17:44,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246d47ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:17:44, skipping insertion in model container [2020-10-20 06:17:44,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:17:44" (2/3) ... [2020-10-20 06:17:44,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246d47ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:17:44, skipping insertion in model container [2020-10-20 06:17:44,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:17:44" (3/3) ... [2020-10-20 06:17:44,728 INFO L111 eAbstractionObserver]: Analyzing ICFG NestedRecursion_1a-2.c [2020-10-20 06:17:44,740 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:17:44,748 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 06:17:44,762 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 06:17:44,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:17:44,784 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:17:44,784 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:17:44,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:17:44,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:17:44,784 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:17:44,785 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:17:44,785 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:17:44,800 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-10-20 06:17:44,811 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:17:44,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:17:44 BoogieIcfgContainer [2020-10-20 06:17:44,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:17:44,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:17:44,816 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:17:44,816 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:17:44,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:17:44" (3/4) ... [2020-10-20 06:17:44,820 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:17:44,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-20 06:17:44,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2020-10-20 06:17:44,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2020-10-20 06:17:44,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-20 06:17:44,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 06:17:44,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:17:44,834 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 06:17:44,884 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:17:44,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:17:44,887 INFO L168 Benchmark]: Toolchain (without parser) took 784.15 ms. Allocated memory was 34.6 MB in the beginning and 46.1 MB in the end (delta: 11.5 MB). Free memory was 11.5 MB in the beginning and 13.2 MB in the end (delta: -1.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,888 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.8 kB). Peak memory consumption was 41.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.88 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 10.6 MB in the beginning and 24.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,889 INFO L168 Benchmark]: Boogie Preprocessor took 25.31 ms. Allocated memory is still 44.0 MB. Free memory was 24.3 MB in the beginning and 22.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,890 INFO L168 Benchmark]: RCFGBuilder took 271.48 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: -16.8 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,891 INFO L168 Benchmark]: TraceAbstraction took 95.40 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 16.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,891 INFO L168 Benchmark]: Witness Printer took 69.18 ms. Allocated memory is still 46.1 MB. Free memory was 16.8 MB in the beginning and 13.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:17:44,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 33.0 MB. Free memory was 18.0 MB in the beginning and 18.0 MB in the end (delta: 41.8 kB). Peak memory consumption was 41.8 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 312.88 ms. Allocated memory was 34.6 MB in the beginning and 44.0 MB in the end (delta: 9.4 MB). Free memory was 10.6 MB in the beginning and 24.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 25.31 ms. Allocated memory is still 44.0 MB. Free memory was 24.3 MB in the beginning and 22.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 271.48 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 22.9 MB in the beginning and 22.9 MB in the end (delta: -16.8 kB). Peak memory consumption was 11.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 95.40 ms. Allocated memory is still 46.1 MB. Free memory was 22.2 MB in the beginning and 16.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 14.3 GB. * Witness Printer took 69.18 ms. Allocated memory is still 46.1 MB. Free memory was 16.8 MB in the beginning and 13.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...