./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 54858612 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/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 0.2.0-5485861 [2020-10-26 03:56:58,019 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:56:58,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:56:58,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:56:58,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:56:58,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:56:58,089 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:56:58,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:56:58,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:56:58,104 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:56:58,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:56:58,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:56:58,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:56:58,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:56:58,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:56:58,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:56:58,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:56:58,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:56:58,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:56:58,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:56:58,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:56:58,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:56:58,137 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:56:58,138 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:56:58,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:56:58,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:56:58,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:56:58,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:56:58,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:56:58,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:56:58,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:56:58,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:56:58,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:56:58,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:56:58,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:56:58,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:56:58,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:56:58,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:56:58,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:56:58,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:56:58,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:56:58,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-10-26 03:56:58,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:56:58,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:56:58,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:56:58,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:56:58,221 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:56:58,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:56:58,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:56:58,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:56:58,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:56:58,222 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:56:58,223 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:56:58,224 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:56:58,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:56:58,224 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:56:58,224 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:56:58,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:56:58,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:56:58,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:56:58,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:56:58,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:58,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:56:58,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:56:58,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:56:58,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:56:58,227 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:56:58,228 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14df269faa4a77275028af94d8141ab36c184cf5 [2020-10-26 03:56:58,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:56:58,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:56:58,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:56:58,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:56:58,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:56:58,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2020-10-26 03:56:58,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90601c733/736d59acb41c4469ad4321a9cc5e01ed/FLAG59c932200 [2020-10-26 03:56:59,449 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:56:59,451 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/NestedRecursion_2c.c [2020-10-26 03:56:59,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90601c733/736d59acb41c4469ad4321a9cc5e01ed/FLAG59c932200 [2020-10-26 03:56:59,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90601c733/736d59acb41c4469ad4321a9cc5e01ed [2020-10-26 03:56:59,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:56:59,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:56:59,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:59,821 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:56:59,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:56:59,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:59" (1/1) ... [2020-10-26 03:56:59,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f6957a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:59, skipping insertion in model container [2020-10-26 03:56:59,830 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:59" (1/1) ... [2020-10-26 03:56:59,840 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:56:59,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:57:00,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:00,029 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:57:00,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:57:00,059 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:57:00,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00 WrapperNode [2020-10-26 03:57:00,060 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:57:00,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:57:00,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:57:00,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:57:00,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,079 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (1/1) ... [2020-10-26 03:57:00,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:57:00,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:57:00,088 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:57:00,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:57:00,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (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 [2020-10-26 03:57:00,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2020-10-26 03:57:00,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:57:00,181 INFO L130 BoogieDeclarations]: Found specification of procedure g [2020-10-26 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:57:00,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:57:00,441 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:57:00,441 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-26 03:57:00,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:00 BoogieIcfgContainer [2020-10-26 03:57:00,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:57:00,445 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:57:00,445 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:57:00,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:57:00,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:56:59" (1/3) ... [2020-10-26 03:57:00,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b1abbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:00, skipping insertion in model container [2020-10-26 03:57:00,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:57:00" (2/3) ... [2020-10-26 03:57:00,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b1abbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:57:00, skipping insertion in model container [2020-10-26 03:57:00,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:00" (3/3) ... [2020-10-26 03:57:00,454 INFO L111 eAbstractionObserver]: Analyzing ICFG NestedRecursion_2c.c [2020-10-26 03:57:00,472 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:57:00,479 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 03:57:00,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 03:57:00,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:57:00,523 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:57:00,523 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:57:00,523 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:57:00,523 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:57:00,523 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:57:00,524 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:57:00,524 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:57:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-26 03:57:00,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 03:57:00,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:57:00 BoogieIcfgContainer [2020-10-26 03:57:00,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:57:00,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:57:00,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:57:00,557 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:57:00,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:57:00" (3/4) ... [2020-10-26 03:57:00,562 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 03:57:00,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-26 03:57:00,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2020-10-26 03:57:00,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-26 03:57:00,577 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-26 03:57:00,577 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 03:57:00,577 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 03:57:00,625 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:57:00,625 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:57:00,628 INFO L168 Benchmark]: Toolchain (without parser) took 816.79 ms. Allocated memory is still 52.4 MB. Free memory was 29.5 MB in the beginning and 27.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.4 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,629 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 41.9 MB. Free memory was 20.4 MB in the beginning and 20.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:57:00,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.58 ms. Allocated memory is still 52.4 MB. Free memory was 28.8 MB in the beginning and 31.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,631 INFO L168 Benchmark]: Boogie Preprocessor took 26.74 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 30.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,631 INFO L168 Benchmark]: RCFGBuilder took 354.78 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 35.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,632 INFO L168 Benchmark]: TraceAbstraction took 111.25 ms. Allocated memory is still 52.4 MB. Free memory was 35.1 MB in the beginning and 30.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,633 INFO L168 Benchmark]: Witness Printer took 68.68 ms. Allocated memory is still 52.4 MB. Free memory was 30.3 MB in the beginning and 27.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:57:00,637 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 41.9 MB. Free memory was 20.4 MB in the beginning and 20.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.58 ms. Allocated memory is still 52.4 MB. Free memory was 28.8 MB in the beginning and 31.6 MB in the end (delta: -2.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.74 ms. Allocated memory is still 52.4 MB. Free memory was 31.6 MB in the beginning and 30.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 354.78 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 35.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 111.25 ms. Allocated memory is still 52.4 MB. Free memory was 35.1 MB in the beginning and 30.3 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 68.68 ms. Allocated memory is still 52.4 MB. Free memory was 30.3 MB in the beginning and 27.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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...