./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Fibonacci01-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci01-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6908dde5 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive/Fibonacci01-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci01-1.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:31:00,490 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:31:00,566 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:31:00,570 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:31:00,572 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:31:00,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:31:00,606 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:31:00,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:31:00,607 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:31:00,609 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:31:00,610 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:31:00,610 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:31:00,611 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:31:00,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:31:00,613 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:31:00,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:31:00,614 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:31:00,614 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:31:00,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:31:00,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:31:00,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:31:00,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:31:00,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:31:00,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:31:00,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:31:00,619 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:31:00,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:31:00,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:31:00,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:31:00,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:31:00,620 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:31:00,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:31:00,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:31:00,621 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:31:00,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:31:00,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:31:00,624 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:31:00,624 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:31:00,624 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:31:00,624 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:31:00,625 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:31:00,625 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:31:00,626 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:31:00,626 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/certificate-witnesses-artifact/referee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:31:00,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:31:00,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:31:00,927 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:31:00,929 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:31:00,930 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:31:00,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci01-1.yml/witness-2.1.yml [2024-09-25 00:31:01,038 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:31:01,039 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:31:01,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-25 00:31:02,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:31:02,688 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:31:02,689 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-25 00:31:02,696 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3d9ff07c0/abf5ffa5e77144729b4711385835922b/FLAG5d685b4c4 [2024-09-25 00:31:02,710 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3d9ff07c0/abf5ffa5e77144729b4711385835922b [2024-09-25 00:31:02,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:31:02,712 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:31:02,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:31:02,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:31:02,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:31:02,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:31:01" (1/2) ... [2024-09-25 00:31:02,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ccba37 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:31:02, skipping insertion in model container [2024-09-25 00:31:02,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:31:01" (1/2) ... [2024-09-25 00:31:02,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6716a5ba and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:31:02, skipping insertion in model container [2024-09-25 00:31:02,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:31:02" (2/2) ... [2024-09-25 00:31:02,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ccba37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02, skipping insertion in model container [2024-09-25 00:31:02,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:31:02" (2/2) ... [2024-09-25 00:31:02,733 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:31:02,733 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures ((((2 <= n) && (n <= ((long long) \result + 1))) || ((n <= 0) && ((\result == 1) || (\result == 0)))) || ((\result == 1) && (1 == n))) [2024-09-25 00:31:02,749 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:31:02,885 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2024-09-25 00:31:02,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:31:02,899 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 00:31:02,931 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci01-1.c[804,817] [2024-09-25 00:31:02,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:31:02,944 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:31:02,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02 WrapperNode [2024-09-25 00:31:02,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:31:02,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:31:02,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:31:02,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:31:02,956 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,961 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,968 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure fibonacci is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 00:31:02,968 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,980 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:31:02,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:31:02,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:31:02,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:31:02,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (1/1) ... [2024-09-25 00:31:02,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:31:03,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:31:03,019 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 00:31:03,022 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 00:31:03,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:31:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:31:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:31:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-09-25 00:31:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:31:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:31:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:31:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 00:31:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 00:31:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:31:03,144 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:31:03,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:31:03,308 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:31:03,327 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:31:03,328 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:31:03,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:31:03 BoogieIcfgContainer [2024-09-25 00:31:03,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:31:03,332 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:31:03,332 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:31:03,333 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:31:03,334 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:31:01" (1/4) ... [2024-09-25 00:31:03,334 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20ad3dbd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:31:03, skipping insertion in model container [2024-09-25 00:31:03,336 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:31:02" (2/4) ... [2024-09-25 00:31:03,336 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20ad3dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:31:03, skipping insertion in model container [2024-09-25 00:31:03,336 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:02" (3/4) ... [2024-09-25 00:31:03,336 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20ad3dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:31:03, skipping insertion in model container [2024-09-25 00:31:03,337 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:31:03" (4/4) ... [2024-09-25 00:31:03,338 INFO L79 RefereeObserver]: Analyzing ICFG Fibonacci01-1.c [2024-09-25 00:31:03,342 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:31:03,343 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-25 00:31:03,344 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 00:31:03,344 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:31:03,387 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-25 00:31:03,388 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:31:03,389 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:31:03,389 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:31:03,390 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:31:03,392 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:03,424 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-25 00:31:03,425 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:03,425 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:31:03,426 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:31:03,426 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:31:03,427 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:31:03,448 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 00:31:03,468 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 00:31:03,469 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:31:03,469 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:31:03,470 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:31:03,470 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:31:03,470 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:03,511 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 00:31:03,512 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:03,512 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:31:03,512 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:31:03,513 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:31:03,522 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:31:03,530 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 00:31:03,533 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 00:31:03,534 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@20ad3dbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 12:31:03, skipping insertion in model container [2024-09-25 00:31:03,534 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 00:31:03,539 INFO L158 Benchmark]: Toolchain (without parser) took 826.74ms. Allocated memory is still 161.5MB. Free memory was 134.4MB in the beginning and 93.6MB in the end (delta: 40.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-25 00:31:03,540 INFO L158 Benchmark]: Witness Parser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:31:03,540 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:31:03,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.73ms. Allocated memory is still 161.5MB. Free memory was 134.4MB in the beginning and 121.9MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 00:31:03,541 INFO L158 Benchmark]: Boogie Preprocessor took 42.92ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 119.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:31:03,542 INFO L158 Benchmark]: RCFGBuilder took 342.38ms. Allocated memory is still 161.5MB. Free memory was 119.9MB in the beginning and 107.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:31:03,543 INFO L158 Benchmark]: Referee took 202.20ms. Allocated memory is still 161.5MB. Free memory was 107.3MB in the beginning and 93.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:31:03,547 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure fibonacci to exit of procedure fibonacci. Annotation is valid for all loop-free paths from entry of procedure main to check that a call to reach_error is unreachable at line 36. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 77.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 125.8MB. Free memory is still 99.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.73ms. Allocated memory is still 161.5MB. Free memory was 134.4MB in the beginning and 121.9MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.92ms. Allocated memory is still 161.5MB. Free memory was 121.9MB in the beginning and 119.9MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 342.38ms. Allocated memory is still 161.5MB. Free memory was 119.9MB in the beginning and 107.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 202.20ms. Allocated memory is still 161.5MB. Free memory was 107.3MB in the beginning and 93.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 00:31:03,589 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE