./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/termination-crafted/Ackermann-2.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/Ackermann-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 5ecb2c96c3072d53870105e0fcaf3f74cb197e51 .............................................................................................................................................................................................................. 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 03:56:26,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 03:56:26,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 03:56:26,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 03:56:26,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 03:56:26,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 03:56:26,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 03:56:26,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 03:56:26,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 03:56:26,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 03:56:26,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 03:56:26,439 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 03:56:26,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 03:56:26,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 03:56:26,443 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 03:56:26,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 03:56:26,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 03:56:26,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 03:56:26,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 03:56:26,459 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 03:56:26,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 03:56:26,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 03:56:26,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 03:56:26,473 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 03:56:26,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 03:56:26,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 03:56:26,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 03:56:26,482 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 03:56:26,484 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 03:56:26,485 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 03:56:26,485 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 03:56:26,486 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 03:56:26,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 03:56:26,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 03:56:26,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 03:56:26,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 03:56:26,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 03:56:26,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 03:56:26,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 03:56:26,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 03:56:26,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 03:56:26,498 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-10-26 03:56:26,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 03:56:26,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 03:56:26,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 03:56:26,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 03:56:26,560 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 03:56:26,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 03:56:26,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 03:56:26,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 03:56:26,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 03:56:26,561 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-26 03:56:26,562 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-26 03:56:26,562 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-26 03:56:26,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 03:56:26,563 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-26 03:56:26,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 03:56:26,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 03:56:26,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 03:56:26,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 03:56:26,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 03:56:26,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 03:56:26,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 03:56:26,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 03:56:26,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 03:56:26,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 03:56:26,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 03:56:26,566 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ecb2c96c3072d53870105e0fcaf3f74cb197e51 [2020-10-26 03:56:27,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 03:56:27,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 03:56:27,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 03:56:27,054 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 03:56:27,054 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 03:56:27,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Ackermann-2.c [2020-10-26 03:56:27,134 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85085af1f/fe6517bce7f54c9fa9399cdebd416c1f/FLAG13575c58a [2020-10-26 03:56:27,855 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 03:56:27,857 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Ackermann-2.c [2020-10-26 03:56:27,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85085af1f/fe6517bce7f54c9fa9399cdebd416c1f/FLAG13575c58a [2020-10-26 03:56:28,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85085af1f/fe6517bce7f54c9fa9399cdebd416c1f [2020-10-26 03:56:28,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 03:56:28,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-26 03:56:28,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:28,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 03:56:28,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 03:56:28,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a45297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28, skipping insertion in model container [2020-10-26 03:56:28,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 03:56:28,260 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 03:56:28,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:28,481 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 03:56:28,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 03:56:28,514 INFO L208 MainTranslator]: Completed translation [2020-10-26 03:56:28,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28 WrapperNode [2020-10-26 03:56:28,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 03:56:28,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 03:56:28,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 03:56:28,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 03:56:28,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (1/1) ... [2020-10-26 03:56:28,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 03:56:28,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 03:56:28,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 03:56:28,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 03:56:28,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (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 03:56:28,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 03:56:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 03:56:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2020-10-26 03:56:28,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 03:56:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 03:56:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2020-10-26 03:56:28,640 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 03:56:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 03:56:28,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 03:56:28,885 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 03:56:28,886 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-26 03:56:28,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:28 BoogieIcfgContainer [2020-10-26 03:56:28,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 03:56:28,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 03:56:28,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 03:56:28,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 03:56:28,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 03:56:28" (1/3) ... [2020-10-26 03:56:28,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbcca32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:28, skipping insertion in model container [2020-10-26 03:56:28,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 03:56:28" (2/3) ... [2020-10-26 03:56:28,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cbcca32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 03:56:28, skipping insertion in model container [2020-10-26 03:56:28,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:28" (3/3) ... [2020-10-26 03:56:28,898 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann-2.c [2020-10-26 03:56:28,915 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 03:56:28,921 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 03:56:28,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 03:56:28,968 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 03:56:28,969 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-26 03:56:28,969 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 03:56:28,969 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 03:56:28,969 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 03:56:28,969 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 03:56:28,969 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 03:56:28,969 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 03:56:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-26 03:56:29,001 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 03:56:29,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 03:56:29 BoogieIcfgContainer [2020-10-26 03:56:29,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 03:56:29,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 03:56:29,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 03:56:29,007 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 03:56:29,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 03:56:28" (3/4) ... [2020-10-26 03:56:29,011 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 03:56:29,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2020-10-26 03:56:29,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure Ack [2020-10-26 03:56:29,022 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2020-10-26 03:56:29,028 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-26 03:56:29,028 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 03:56:29,028 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 03:56:29,085 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 03:56:29,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 03:56:29,088 INFO L168 Benchmark]: Toolchain (without parser) took 865.84 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 30.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,089 INFO L168 Benchmark]: CDTParser took 0.55 ms. Allocated memory is still 44.0 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 03:56:29,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.29 ms. Allocated memory is still 54.5 MB. Free memory was 31.4 MB in the beginning and 36.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,090 INFO L168 Benchmark]: Boogie Preprocessor took 34.62 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 35.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,091 INFO L168 Benchmark]: RCFGBuilder took 336.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 38.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,092 INFO L168 Benchmark]: TraceAbstraction took 116.10 ms. Allocated memory is still 54.5 MB. Free memory was 37.7 MB in the beginning and 33.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,093 INFO L168 Benchmark]: Witness Printer took 78.46 ms. Allocated memory is still 54.5 MB. Free memory was 33.1 MB in the beginning and 30.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 03:56:29,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55 ms. Allocated memory is still 44.0 MB. Free memory was 24.3 MB in the beginning and 24.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.29 ms. Allocated memory is still 54.5 MB. Free memory was 31.4 MB in the beginning and 36.1 MB in the end (delta: -4.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.62 ms. Allocated memory is still 54.5 MB. Free memory was 36.1 MB in the beginning and 35.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 336.18 ms. Allocated memory is still 54.5 MB. Free memory was 35.0 MB in the beginning and 38.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 116.10 ms. Allocated memory is still 54.5 MB. Free memory was 37.7 MB in the beginning and 33.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 78.46 ms. Allocated memory is still 54.5 MB. Free memory was 33.1 MB in the beginning and 30.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 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, 25 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=25occurred 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...