./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 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-simple/fibo_10-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.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-fb1cb0b-m [2024-09-25 11:49:32,174 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:49:32,226 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:49:32,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:49:32,233 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:49:32,246 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:49:32,247 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:49:32,247 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:49:32,248 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:49:32,248 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:49:32,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:49:32,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:49:32,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:49:32,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:49:32,249 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:49:32,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:49:32,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:49:32,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:49:32,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:49:32,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:49:32,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:49:32,255 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:49:32,255 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:49:32,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:49:32,255 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:49:32,256 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:49:32,256 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:49:32,256 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:49:32,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:49:32,256 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:49:32,256 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:32,257 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:49:32,257 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:49:32,258 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:49:32,258 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:49:32,258 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:49:32,260 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:49:32,260 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:49:32,260 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:49:32,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:49:32,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:49:32,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:49:32,543 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:49:32,544 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:49:32,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.yml/witness-2.1.yml [2024-09-25 11:49:32,586 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:49:32,586 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:49:32,587 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-09-25 11:49:33,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:49:34,061 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:49:34,062 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-09-25 11:49:34,071 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/87de7ef82/b52578b691f54b8384bebb2ebf0d1090/FLAG74d262347 [2024-09-25 11:49:34,469 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/87de7ef82/b52578b691f54b8384bebb2ebf0d1090 [2024-09-25 11:49:34,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:49:34,470 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:49:34,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:34,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:49:34,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:49:34,476 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 11:49:32" (1/2) ... [2024-09-25 11:49:34,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55284738 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:34, skipping insertion in model container [2024-09-25 11:49:34,477 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 11:49:32" (1/2) ... [2024-09-25 11:49:34,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3492f1ef and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:34, skipping insertion in model container [2024-09-25 11:49:34,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:34" (2/2) ... [2024-09-25 11:49:34,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55284738 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34, skipping insertion in model container [2024-09-25 11:49:34,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:34" (2/2) ... [2024-09-25 11:49:34,482 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:49:34,483 INFO L1541 ArrayList]: Function contract at [L7]: requires null, ensures ((((((((((((((\result == 3) && (4 == n)) || ((2 == n) && (\result == 1))) || ((\result == 55) && (10 == n))) || (n < 1)) || ((3 == n) && (\result == 2))) || ((\result == 21) && (8 == n))) || ((\result == 8) && (6 == n))) || ((\result == 1) && (1 == n))) || ((\result == 34) && (9 == n))) || (10 < n)) || ((\result == 13) && (7 == n))) || ((\result == 5) && (5 == n))) && ((0 < n) || (\result == 0))) [2024-09-25 11:49:34,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:49:34,627 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-simple/fibo_10-2.c[743,756] [2024-09-25 11:49:34,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:34,646 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:49:34,679 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-simple/fibo_10-2.c[743,756] [2024-09-25 11:49:34,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:34,700 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:49:34,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34 WrapperNode [2024-09-25 11:49:34,701 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:34,702 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:49:34,702 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:49:34,702 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:49:34,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,728 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure fibo is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:49:34,728 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,728 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:49:34,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:49:34,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:49:34,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:49:34,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (1/1) ... [2024-09-25 11:49:34,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:49:34,772 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 11:49:34,775 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 11:49:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:49:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:49:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:49:34,820 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-25 11:49:34,821 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:49:34,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:49:34,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:49:34,888 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:49:34,891 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:49:35,052 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:49:35,072 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:49:35,074 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:49:35,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:35 BoogieIcfgContainer [2024-09-25 11:49:35,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:49:35,075 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:49:35,075 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:49:35,076 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:49:35,076 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 11:49:32" (1/4) ... [2024-09-25 11:49:35,076 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@699a8ba and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,076 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:49:34" (2/4) ... [2024-09-25 11:49:35,077 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@699a8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,077 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:34" (3/4) ... [2024-09-25 11:49:35,077 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@699a8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,077 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:35" (4/4) ... [2024-09-25 11:49:35,078 INFO L79 RefereeObserver]: Analyzing ICFG fibo_10-2.c [2024-09-25 11:49:35,081 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:49:35,082 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-25 11:49:35,083 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fiboErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:49:35,083 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 11:49:35,115 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 11:49:35,115 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:35,116 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:35,116 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:35,119 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:35,120 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:35,139 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 11:49:35,140 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:35,140 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:35,140 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:35,141 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:35,141 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:35,153 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:49:35,167 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:49:35,168 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:35,168 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:35,168 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:35,168 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:35,169 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:35,203 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 11:49:35,203 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:35,203 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:35,203 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:35,203 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:35,215 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:35,228 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fiboErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:49:35,231 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:49:35,231 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@699a8ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,231 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:49:35,233 INFO L158 Benchmark]: Toolchain (without parser) took 762.25ms. Allocated memory is still 188.7MB. Free memory was 152.1MB in the beginning and 129.1MB in the end (delta: 23.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-09-25 11:49:35,233 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 79.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:35,233 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:35,234 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.47ms. Allocated memory is still 188.7MB. Free memory was 152.1MB in the beginning and 138.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:49:35,234 INFO L158 Benchmark]: Boogie Preprocessor took 39.43ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 137.4MB in the end (delta: 990.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:35,234 INFO L158 Benchmark]: RCFGBuilder took 332.75ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 150.2MB in the end (delta: -12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 11:49:35,235 INFO L158 Benchmark]: Referee took 156.39ms. Allocated memory is still 188.7MB. Free memory was 150.2MB in the beginning and 129.1MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-25 11:49:35,236 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 main to check that a call to reach_error is unreachable at line 29. Annotation is valid for all loop-free paths from entry of procedure fibo to exit of procedure fibo. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 109.1MB. Free memory was 80.1MB in the beginning and 79.9MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.47ms. Allocated memory is still 188.7MB. Free memory was 152.1MB in the beginning and 138.4MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.43ms. Allocated memory is still 188.7MB. Free memory was 138.4MB in the beginning and 137.4MB in the end (delta: 990.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.75ms. Allocated memory is still 188.7MB. Free memory was 137.4MB in the beginning and 150.2MB in the end (delta: -12.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 156.39ms. Allocated memory is still 188.7MB. Free memory was 150.2MB in the beginning and 129.1MB in the end (delta: 21.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:49:35,260 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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