./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.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_2c.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 14df269faa4a77275028af94d8141ab36c184cf5 ........................................................................................................................................................................................................... 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 01:18:10,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:18:10,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:18:10,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:18:10,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:18:10,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:18:10,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:18:10,728 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:18:10,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:18:10,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:18:10,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:18:10,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:18:10,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:18:10,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:18:10,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:18:10,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:18:10,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:18:10,748 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:18:10,751 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:18:10,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:18:10,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:18:10,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:18:10,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:18:10,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:18:10,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:18:10,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:18:10,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:18:10,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:18:10,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:18:10,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:18:10,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:18:10,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:18:10,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:18:10,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:18:10,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:18:10,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:18:10,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:18:10,779 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:18:10,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:18:10,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:18:10,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:18:10,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-07-29 01:18:10,815 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:18:10,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:18:10,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:18:10,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:18:10,817 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:18:10,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:18:10,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:18:10,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:18:10,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:18:10,818 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-07-29 01:18:10,819 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-07-29 01:18:10,819 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-07-29 01:18:10,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-29 01:18:10,819 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-07-29 01:18:10,819 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:18:10,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:18:10,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:18:10,820 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-29 01:18:10,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-29 01:18:10,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-29 01:18:10,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:18:10,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-29 01:18:10,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:18:10,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-29 01:18:10,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:18:10,822 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 -> 14df269faa4a77275028af94d8141ab36c184cf5 [2020-07-29 01:18:11,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:18:11,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:18:11,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:18:11,147 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:18:11,147 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:18:11,148 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2020-07-29 01:18:11,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24cc58f2/325f1eb881454f1eab4e5d1df0924b09/FLAG85e11870e [2020-07-29 01:18:11,704 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:18:11,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2020-07-29 01:18:11,711 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24cc58f2/325f1eb881454f1eab4e5d1df0924b09/FLAG85e11870e [2020-07-29 01:18:12,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b24cc58f2/325f1eb881454f1eab4e5d1df0924b09 [2020-07-29 01:18:12,070 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:18:12,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-07-29 01:18:12,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:18:12,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:18:12,079 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:18:12,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356bc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12, skipping insertion in model container [2020-07-29 01:18:12,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,092 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:18:12,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:18:12,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:18:12,296 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:18:12,326 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:18:12,345 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:18:12,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12 WrapperNode [2020-07-29 01:18:12,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:18:12,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:18:12,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:18:12,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:18:12,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (1/1) ... [2020-07-29 01:18:12,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:18:12,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:18:12,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:18:12,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:18:12,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (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 01:18:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-29 01:18:12,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:18:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-07-29 01:18:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-29 01:18:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-29 01:18:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-07-29 01:18:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-29 01:18:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-29 01:18:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:18:12,888 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:18:12,889 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-29 01:18:12,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:18:12 BoogieIcfgContainer [2020-07-29 01:18:12,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:18:12,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-29 01:18:12,895 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-29 01:18:12,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-29 01:18:12,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.07 01:18:12" (1/3) ... [2020-07-29 01:18:12,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101f3155 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 01:18:12,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:18:12" (2/3) ... [2020-07-29 01:18:12,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101f3155 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 01:18:12,901 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 01:18:12,903 INFO L109 eAbstractionObserver]: Analyzing ICFG NestedRecursion_2c.c [2020-07-29 01:18:12,914 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-29 01:18:12,922 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-07-29 01:18:12,934 INFO L251 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-07-29 01:18:12,954 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-29 01:18:12,954 INFO L376 AbstractCegarLoop]: Hoare is false [2020-07-29 01:18:12,954 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-29 01:18:12,954 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:18:12,954 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:18:12,954 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-29 01:18:12,954 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:18:12,955 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-29 01:18:12,968 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-29 01:18:12,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:18:12,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.07 01:18:12 BoogieIcfgContainer [2020-07-29 01:18:12,983 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-29 01:18:12,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:18:12,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:18:12,984 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:18:12,984 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 01:18:12,989 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-29 01:18:12,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-07-29 01:18:12,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-07-29 01:18:12,997 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-07-29 01:18:13,002 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-07-29 01:18:13,003 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-29 01:18:13,003 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-29 01:18:13,049 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:18:13,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:18:13,053 INFO L168 Benchmark]: Toolchain (without parser) took 980.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:13,054 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:13,054 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.70 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:13,055 INFO L168 Benchmark]: Boogie Preprocessor took 42.40 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:18:13,056 INFO L168 Benchmark]: RCFGBuilder took 502.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:13,056 INFO L168 Benchmark]: TraceAbstraction took 88.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:13,057 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:18:13,060 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 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.70 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.40 ms. Allocated memory is still 1.0 GB. Free memory is still 944.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 502.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -171.8 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 88.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Witness Printer took 66.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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...