./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 a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/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-dev-a9b967e-m [2024-09-11 20:54:12,143 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:12,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:12,210 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:12,210 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:12,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:12,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:12,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:12,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:12,242 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:12,243 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:12,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:12,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:12,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:12,245 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:12,245 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:12,245 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:12,246 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:12,246 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:12,246 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:12,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:12,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:12,250 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:12,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:12,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:12,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:12,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:12,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:12,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:12,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:12,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:12,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:12,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:12,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:12,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:12,456 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:12,456 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:12,457 INFO L431 ainManager$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 [2024-09-11 20:54:12,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:12,524 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:12,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-11 20:54:13,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:13,936 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:13,937 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-11 20:54:13,942 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/27fb46e10/263567879cc44bceb48b340268344944/FLAG5c53854c1 [2024-09-11 20:54:13,951 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/27fb46e10/263567879cc44bceb48b340268344944 [2024-09-11 20:54:13,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:13,953 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:13,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:13,953 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:13,959 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:13,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:12" (1/2) ... [2024-09-11 20:54:13,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406561d0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:13, skipping insertion in model container [2024-09-11 20:54:13,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:12" (1/2) ... [2024-09-11 20:54:13,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6cbec26 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:13, skipping insertion in model container [2024-09-11 20:54:13,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:13" (2/2) ... [2024-09-11 20:54:13,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406561d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:13, skipping insertion in model container [2024-09-11 20:54:13,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:13" (2/2) ... [2024-09-11 20:54:13,967 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:13,967 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures ((((2 <= \old(n)) && (\old(n) <= ((long long) \result + 1))) || ((\old(n) <= 0) && ((\result == 1) || (\result == 0)))) || ((\result == 1) && (1 == \old(n)))) [2024-09-11 20:54:13,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:14,092 WARN L247 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] [2024-09-11 20:54:14,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:14,106 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-11 20:54:14,146 WARN L247 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] [2024-09-11 20:54:14,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:14,160 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:14,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14 WrapperNode [2024-09-11 20:54:14,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:14,162 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:14,162 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:14,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:14,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,176 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,184 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 [2024-09-11 20:54:14,187 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,195 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:14,197 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:14,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:14,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:14,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (1/1) ... [2024-09-11 20:54:14,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:14,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:14,223 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) [2024-09-11 20:54:14,225 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 [2024-09-11 20:54:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:14,267 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-09-11 20:54:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:14,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:54:14,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:14,320 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:14,322 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:14,441 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:14,441 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:14,458 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:14,459 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:14,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:14 BoogieIcfgContainer [2024-09-11 20:54:14,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:14,460 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:14,460 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:14,461 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:14,461 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:12" (1/4) ... [2024-09-11 20:54:14,461 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72adbbab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:14, skipping insertion in model container [2024-09-11 20:54:14,461 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:13" (2/4) ... [2024-09-11 20:54:14,461 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72adbbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:14, skipping insertion in model container [2024-09-11 20:54:14,462 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:14" (3/4) ... [2024-09-11 20:54:14,462 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72adbbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:14, skipping insertion in model container [2024-09-11 20:54:14,462 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:14" (4/4) ... [2024-09-11 20:54:14,463 INFO L79 RefereeObserver]: Analyzing ICFG Fibonacci01-1.c [2024-09-11 20:54:14,465 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:14,466 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:14,466 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:54:14,466 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:14,495 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:14,496 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:14,496 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:14,497 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:14,498 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:14,500 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:14,522 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:14,523 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:14,526 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:14,526 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:14,527 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:14,527 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:14,543 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:14,558 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:54:14,562 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:14,562 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:14,562 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:14,563 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:14,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:14,585 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:54:14,586 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:14,586 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:14,586 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:14,586 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:14,592 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:14,595 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:14,598 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:14,602 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@72adbbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:14, skipping insertion in model container [2024-09-11 20:54:14,602 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:14,605 INFO L158 Benchmark]: Toolchain (without parser) took 651.33ms. Allocated memory is still 172.0MB. Free memory was 140.2MB in the beginning and 98.6MB in the end (delta: 41.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:14,607 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:14,607 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 121.6MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:14,608 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.96ms. Allocated memory is still 172.0MB. Free memory was 140.2MB in the beginning and 126.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:54:14,609 INFO L158 Benchmark]: Boogie Preprocessor took 34.55ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 125.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:14,610 INFO L158 Benchmark]: RCFGBuilder took 262.40ms. Allocated memory is still 172.0MB. Free memory was 125.2MB in the beginning and 111.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:54:14,610 INFO L158 Benchmark]: Referee took 142.80ms. Allocated memory is still 172.0MB. Free memory was 111.9MB in the beginning and 98.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:14,612 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 36. Annotation is valid for all loop-free paths from entry of procedure fibonacci to exit of procedure fibonacci. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.15ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.16ms. Allocated memory is still 121.6MB. Free memory is still 94.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.96ms. Allocated memory is still 172.0MB. Free memory was 140.2MB in the beginning and 126.6MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.55ms. Allocated memory is still 172.0MB. Free memory was 126.6MB in the beginning and 125.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 262.40ms. Allocated memory is still 172.0MB. Free memory was 125.2MB in the beginning and 111.9MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 142.80ms. Allocated memory is still 172.0MB. Free memory was 111.9MB in the beginning and 98.6MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:14,636 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/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_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:54:16,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:16,461 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:54:16,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:16,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:16,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:16,491 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:16,492 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:16,492 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:16,493 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:16,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:16,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:16,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:16,496 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:16,496 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:16,496 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:16,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:16,498 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:16,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:16,498 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:54:16,499 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:16,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:16,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:16,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:16,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:16,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:16,501 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:54:16,501 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:54:16,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:16,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:16,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:16,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:16,503 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:54:16,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:16,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:16,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:16,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:16,766 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:16,767 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:16,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-11 20:54:17,999 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:18,140 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:18,140 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Fibonacci01-1.c [2024-09-11 20:54:18,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f265c3a74/ecb69017bf1d4ac2a2269aafcc67e64c/FLAG78e48d69f [2024-09-11 20:54:18,156 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f265c3a74/ecb69017bf1d4ac2a2269aafcc67e64c [2024-09-11 20:54:18,158 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:18,159 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:18,160 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/Fibonacci01-1.yml/witness-2.1.yml [2024-09-11 20:54:18,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:18,202 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:18,204 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:18,204 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:18,207 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:18,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:18" (1/2) ... [2024-09-11 20:54:18,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417659a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:18" (1/2) ... [2024-09-11 20:54:18,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@204d400b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:18" (2/2) ... [2024-09-11 20:54:18,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@417659a0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:18" (2/2) ... [2024-09-11 20:54:18,229 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:18,229 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures ((((2 <= \old(n)) && (\old(n) <= ((long long) \result + 1))) || ((\old(n) <= 0) && ((\result == 1) || (\result == 0)))) || ((\result == 1) && (1 == \old(n)))) [2024-09-11 20:54:18,243 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:18,370 WARN L247 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] [2024-09-11 20:54:18,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:18,389 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-11 20:54:18,426 WARN L247 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] [2024-09-11 20:54:18,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:18,438 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:18,439 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18 WrapperNode [2024-09-11 20:54:18,439 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:18,440 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:18,441 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:18,441 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:18,449 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,450 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,455 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,462 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 [2024-09-11 20:54:18,462 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,463 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,471 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,474 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,475 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,477 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:18,479 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:18,479 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:18,479 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:18,479 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (1/1) ... [2024-09-11 20:54:18,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:18,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:18,503 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) [2024-09-11 20:54:18,506 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 [2024-09-11 20:54:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-09-11 20:54:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:54:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:54:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:18,602 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:18,603 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:18,745 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:18,745 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:18,768 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:18,769 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:18,770 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:18 BoogieIcfgContainer [2024-09-11 20:54:18,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:18,771 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:18,771 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:18,772 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:18,772 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:18" (1/4) ... [2024-09-11 20:54:18,773 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ddf4ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,773 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:18" (2/4) ... [2024-09-11 20:54:18,773 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ddf4ef5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,774 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18" (3/4) ... [2024-09-11 20:54:18,774 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ddf4ef5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,774 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:18" (4/4) ... [2024-09-11 20:54:18,775 INFO L79 RefereeObserver]: Analyzing ICFG Fibonacci01-1.c [2024-09-11 20:54:18,777 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:18,778 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:18,778 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibonacciErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:54:18,778 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:18,823 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:18,824 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,824 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,825 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,826 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,827 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,856 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:18,857 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,857 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,858 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,858 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,859 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,880 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:18,898 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-11 20:54:18,898 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,898 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,899 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,899 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,899 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,927 INFO L101 BaseMinimizeStates]: Removed 16 edges and 6 locations by large block encoding [2024-09-11 20:54:18,928 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,928 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,928 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,928 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,933 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,953 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:54:18,954 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ddf4ef5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,954 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:18,956 INFO L158 Benchmark]: Toolchain (without parser) took 753.30ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 32.8MB in the beginning and 49.2MB in the end (delta: -16.4MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,956 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:18,957 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 34.9MB in the beginning and 34.6MB in the end (delta: 244.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:18,958 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.03ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 41.2MB in the end (delta: -8.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,959 INFO L158 Benchmark]: Boogie Preprocessor took 37.15ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,959 INFO L158 Benchmark]: RCFGBuilder took 291.80ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 39.1MB in the beginning and 64.8MB in the end (delta: -25.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,960 INFO L158 Benchmark]: Referee took 183.58ms. Allocated memory is still 92.3MB. Free memory was 64.8MB in the beginning and 49.2MB in the end (delta: 15.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,962 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure fibonacci to exit of procedure fibonacci. One counterexample starts in \old(n)=4 and ends in \old(n)=4, \result=0, n=0. 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: * CDTParser took 0.18ms. Allocated memory is still 73.4MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 34.9MB in the beginning and 34.6MB in the end (delta: 244.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.03ms. Allocated memory is still 73.4MB. Free memory was 32.6MB in the beginning and 41.2MB in the end (delta: -8.6MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.15ms. Allocated memory is still 73.4MB. Free memory was 41.2MB in the beginning and 39.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.80ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 39.1MB in the beginning and 64.8MB in the end (delta: -25.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 183.58ms. Allocated memory is still 92.3MB. Free memory was 64.8MB in the beginning and 49.2MB in the end (delta: 15.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:18,988 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE