./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.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 1b7166d94206693c3f254a3c1de8d5825f8510fb ........................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:18:10,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:18:10,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:18:10,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:18:10,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:18:10,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:18:10,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:18:10,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:18:10,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:18:10,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:18:10,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:18:10,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:18:10,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:18:10,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:18:10,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:18:10,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:18:10,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:18:10,456 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:18:10,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:18:10,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:18:10,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:18:10,464 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:18:10,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:18:10,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:18:10,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:18:10,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:18:10,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:18:10,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:18:10,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:18:10,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:18:10,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:18:10,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:18:10,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:18:10,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:18:10,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:18:10,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:18:10,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:18:10,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:18:10,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:18:10,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:18:10,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:18:10,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-07-29 01:18:10,497 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:18:10,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:18:10,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:18:10,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:18:10,498 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:18:10,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:18:10,499 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:18:10,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:18:10,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:18:10,500 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-07-29 01:18:10,500 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-07-29 01:18:10,500 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-07-29 01:18:10,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:18:10,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-07-29 01:18:10,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:18:10,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:18:10,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:18:10,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:18:10,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:18:10,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:18:10,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:18:10,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:18:10,502 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:18:10,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:18:10,503 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:18:10,503 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 -> 1b7166d94206693c3f254a3c1de8d5825f8510fb [2020-07-29 01:18:10,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:18:10,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:18:10,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:18:10,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:18:10,838 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:18:10,839 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2020-07-29 01:18:10,901 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b160b0924/384fbd7af23e406f96c1fe22872e3843/FLAG780f62d45 [2020-07-29 01:18:11,298 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:18:11,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2b.c [2020-07-29 01:18:11,304 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b160b0924/384fbd7af23e406f96c1fe22872e3843/FLAG780f62d45 [2020-07-29 01:18:11,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b160b0924/384fbd7af23e406f96c1fe22872e3843 [2020-07-29 01:18:11,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:18:11,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-07-29 01:18:11,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:18:11,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:18:11,700 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:18:11,701 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2467ca25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11, skipping insertion in model container [2020-07-29 01:18:11,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:18:11,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:18:11,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:18:11,886 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:18:11,903 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:18:11,918 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:18:11,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11 WrapperNode [2020-07-29 01:18:11,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:18:11,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:18:11,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:18:11,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:18:11,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (1/1) ... [2020-07-29 01:18:11,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:18:11,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:18:11,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:18:11,945 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:18:11,946 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (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 [2020-07-29 01:18:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-29 01:18:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:18:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-29 01:18:12,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-29 01:18:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-29 01:18:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-29 01:18:12,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-29 01:18:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-29 01:18:12,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:18:12,415 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:18:12,416 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-29 01:18:12,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:18:12 BoogieIcfgContainer [2020-07-29 01:18:12,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:18:12,421 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:18:12,421 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:18:12,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:18:12,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:18:11" (1/3) ... [2020-07-29 01:18:12,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa9fab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:18:12, skipping insertion in model container [2020-07-29 01:18:12,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:11" (2/3) ... [2020-07-29 01:18:12,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aa9fab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.07 01:18:12, skipping insertion in model container [2020-07-29 01:18:12,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:18:12" (3/3) ... [2020-07-29 01:18:12,430 INFO L109 eAbstractionObserver]: Analyzing ICFG NestedRecursion_2b.c [2020-07-29 01:18:12,441 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:18:12,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-29 01:18:12,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-29 01:18:12,488 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:18:12,489 INFO L376 AbstractCegarLoop]: Hoare is false [2020-07-29 01:18:12,489 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:18:12,489 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:18:12,490 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:18:12,490 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:18:12,490 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:18:12,490 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:18:12,505 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-29 01:18:12,516 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:18:12,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:18:12 BoogieIcfgContainer [2020-07-29 01:18:12,521 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:18:12,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:18:12,522 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:18:12,522 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:18:12,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:18:12" (3/4) ... [2020-07-29 01:18:12,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-29 01:18:12,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-07-29 01:18:12,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-07-29 01:18:12,536 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-07-29 01:18:12,541 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-07-29 01:18:12,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-29 01:18:12,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-29 01:18:12,610 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:18:12,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:18:12,613 INFO L168 Benchmark]: Toolchain (without parser) took 920.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -147.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:12,614 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:12,615 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:12,615 INFO L168 Benchmark]: Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:12,616 INFO L168 Benchmark]: RCFGBuilder took 475.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:12,616 INFO L168 Benchmark]: TraceAbstraction took 100.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:12,617 INFO L168 Benchmark]: Witness Printer took 88.51 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:12,626 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 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.74 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.79 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 475.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -170.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 100.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 88.51 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 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 4 procedures, 20 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=20occurred 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...