./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d925f1aaa578011e84cee59af464c9f4e53ab5dc54b7f9269f34505d8383253a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:35:42,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:35:42,632 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf [2024-11-02 12:35:42,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:35:42,642 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:35:42,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:35:42,687 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:35:42,688 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:35:42,688 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:35:42,690 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:35:42,691 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:35:42,692 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:35:42,692 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:35:42,695 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:35:42,696 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:35:42,696 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:35:42,697 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:35:42,697 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:35:42,698 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:35:42,698 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:35:42,699 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:35:42,699 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:35:42,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 12:35:42,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 12:35:42,701 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:35:42,702 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:35:42,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:35:42,703 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-02 12:35:42,704 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-02 12:35:42,704 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-02 12:35:42,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:35:42,705 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 12:35:42,706 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:35:42,706 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-02 12:35:42,707 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:35:42,707 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:35:42,708 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:35:42,708 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:35:42,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:42,709 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:35:42,709 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:35:42,711 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:35:42,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:35:42,711 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:35:42,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:35:42,712 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:35:42,713 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d925f1aaa578011e84cee59af464c9f4e53ab5dc54b7f9269f34505d8383253a [2024-11-02 12:35:43,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:35:43,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:35:43,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:35:43,159 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:35:43,161 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:35:43,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c Unable to find full path for "g++" [2024-11-02 12:35:45,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:35:45,586 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:35:45,587 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/sv-benchmarks/c/termination-crafted/NestedRecursion_1a-2.c [2024-11-02 12:35:45,596 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/data/3796aca88/f3eec32a39f24506879db79c40b63f56/FLAG6f7453d78 [2024-11-02 12:35:45,623 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/data/3796aca88/f3eec32a39f24506879db79c40b63f56 [2024-11-02 12:35:45,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:35:45,630 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:35:45,632 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:45,632 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:35:45,641 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:35:45,642 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:45" (1/1) ... [2024-11-02 12:35:45,643 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a36ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:45, skipping insertion in model container [2024-11-02 12:35:45,644 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:35:45" (1/1) ... [2024-11-02 12:35:45,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:35:45,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:45,970 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:35:45,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:35:46,016 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:35:46,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46 WrapperNode [2024-11-02 12:35:46,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:35:46,019 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:46,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:35:46,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:35:46,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,035 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,055 INFO L138 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12 [2024-11-02 12:35:46,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:35:46,058 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:35:46,058 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:35:46,058 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:35:46,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,079 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,085 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:35:46,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:35:46,089 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:35:46,090 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:35:46,091 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (1/1) ... [2024-11-02 12:35:46,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:35:46,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:35:46,131 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:35:46,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:35:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2024-11-02 12:35:46,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2024-11-02 12:35:46,176 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2024-11-02 12:35:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2024-11-02 12:35:46,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:35:46,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:35:46,264 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:35:46,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:35:46,430 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-02 12:35:46,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:35:46,465 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:35:46,465 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:35:46,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:46 BoogieIcfgContainer [2024-11-02 12:35:46,466 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:35:46,470 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:35:46,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:35:46,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:35:46,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:35:45" (1/3) ... [2024-11-02 12:35:46,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c1a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:46, skipping insertion in model container [2024-11-02 12:35:46,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:35:46" (2/3) ... [2024-11-02 12:35:46,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c1a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:35:46, skipping insertion in model container [2024-11-02 12:35:46,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:46" (3/3) ... [2024-11-02 12:35:46,481 INFO L112 eAbstractionObserver]: Analyzing ICFG NestedRecursion_1a-2.c [2024-11-02 12:35:46,500 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:35:46,501 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2024-11-02 12:35:46,504 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c1a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 12:35:46, skipping insertion in model container [2024-11-02 12:35:46,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 12:35:46,506 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-02 12:35:46,507 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-02 12:35:46,507 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-02 12:35:46,508 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:35:46" (3/3) ... [2024-11-02 12:35:46,511 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-02 12:35:46,516 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2024-11-02 12:35:46,517 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2024-11-02 12:35:46,523 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-02 12:35:46,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-02 12:35:46,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-02 12:35:46,626 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/witness.graphml [2024-11-02 12:35:46,631 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/witness.yml [2024-11-02 12:35:46,632 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-02 12:35:46,634 INFO L158 Benchmark]: Toolchain (without parser) took 1003.45ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 83.9MB in the end (delta: 31.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,635 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:35:46,636 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.95ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 104.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 102.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,638 INFO L158 Benchmark]: Boogie Preprocessor took 29.81ms. Allocated memory is still 155.2MB. Free memory was 102.8MB in the beginning and 102.1MB in the end (delta: 693.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-02 12:35:46,642 INFO L158 Benchmark]: RCFGBuilder took 377.76ms. Allocated memory is still 155.2MB. Free memory was 101.5MB in the beginning and 91.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,642 INFO L158 Benchmark]: TraceAbstraction took 34.92ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 88.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,643 INFO L158 Benchmark]: Witness Printer took 125.76ms. Allocated memory is still 155.2MB. Free memory was 88.6MB in the beginning and 83.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-02 12:35:46,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 121.6MB. Free memory is still 65.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.95ms. Allocated memory is still 155.2MB. Free memory was 115.5MB in the beginning and 104.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 155.2MB. Free memory was 104.2MB in the beginning and 102.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.81ms. Allocated memory is still 155.2MB. Free memory was 102.8MB in the beginning and 102.1MB in the end (delta: 693.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 377.76ms. Allocated memory is still 155.2MB. Free memory was 101.5MB in the beginning and 91.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 34.92ms. Allocated memory is still 155.2MB. Free memory was 90.4MB in the beginning and 88.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 125.76ms. Allocated memory is still 155.2MB. Free memory was 88.6MB in the beginning and 83.9MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2024-11-02 12:35:46,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfb9e74e-b352-4342-8cf1-87e53206264c/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE