This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:31:07,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:31:07,603 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:31:07,606 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:31:07,607 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:31:07,647 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:31:07,648 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:31:07,648 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:31:07,649 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:31:07,649 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:31:07,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:31:07,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:31:07,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:31:07,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:31:07,651 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:31:07,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:31:07,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:31:07,654 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:31:07,654 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:31:07,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:31:07,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:31:07,655 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:31:07,655 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:31:07,655 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:31:07,656 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:31:07,656 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:31:07,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:31:07,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:31:07,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:31:07,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:31:07,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:31:07,657 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:31:07,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:31:07,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:31:07,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:31:07,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:31:07,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:31:07,673 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:31:07,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:31:07,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:31:07,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:31:07,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:31:07,931 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:31:07,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2024-09-25 00:31:09,455 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:31:09,632 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:31:09,632 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_6-1.c [2024-09-25 00:31:09,638 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/dcd67a42c/a560326e809543c596c33dec8f3b0a93/FLAG915e81d53 [2024-09-25 00:31:10,017 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/dcd67a42c/a560326e809543c596c33dec8f3b0a93 [2024-09-25 00:31:10,019 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:31:10,019 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:31:10,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_6-1.yml/witness-2.1.yml [2024-09-25 00:31:10,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:31:10,067 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:31:10,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:31:10,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:31:10,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:31:10,074 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:31:10" (1/2) ... [2024-09-25 00:31:10,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6498222b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:31:10" (1/2) ... [2024-09-25 00:31:10,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4f8d4ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,076 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 12:31:10" (2/2) ... [2024-09-25 00:31:10,076 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6498222b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,077 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 12:31:10" (2/2) ... [2024-09-25 00:31:10,082 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:31:10,082 INFO L1541 ArrayList]: Function contract at [L19]: requires null, ensures (((((((((2 == \result) && (3 == n)) || ((\result == 1) && (n == 1))) || (5 < n)) || ((3 == \result) && (n == 4))) || (n < 1)) || ((5 == \result) && (5 == n))) || ((\result == 1) && (2 == n))) && (((\result == 0) || (n == 1)) || (1 < n))) [2024-09-25 00:31:10,082 INFO L1541 ArrayList]: Function contract at [L9]: requires null, ensures ((\result == 0) || (0 < n)) [2024-09-25 00:31:10,095 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:31:10,245 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_2calls_6-1.c[946,959] [2024-09-25 00:31:10,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:31:10,264 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 00:31:10,295 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_2calls_6-1.c[946,959] [2024-09-25 00:31:10,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:31:10,308 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:31:10,309 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:31:10 WrapperNode [2024-09-25 00:31:10,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:31:10,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:31:10,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:31:10,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:31:10,320 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,320 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,326 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,333 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure fibo1 is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 00:31:10,333 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,333 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,336 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,337 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,337 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,338 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:31:10,340 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:31:10,340 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:31:10,340 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:31:10,340 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 25.09 12:31:10" (1/1) ... [2024-09-25 00:31:10,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:31:10,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:31:10,365 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 00:31:10,368 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 00:31:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:31:10,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:31:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:31:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-25 00:31:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-25 00:31:10,404 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:31:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:31:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:31:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:31:10,404 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 00:31:10,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:31:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 00:31:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 00:31:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:31:10,458 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:31:10,460 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:31:10,575 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:31:10,599 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:31:10,602 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:31:10,603 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:31:10 BoogieIcfgContainer [2024-09-25 00:31:10,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:31:10,603 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:31:10,603 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:31:10,604 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:31:10,604 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:31:10" (1/4) ... [2024-09-25 00:31:10,605 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@472007a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,605 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 12:31:10" (2/4) ... [2024-09-25 00:31:10,606 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@472007a9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,609 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 25.09 12:31:10" (3/4) ... [2024-09-25 00:31:10,609 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@472007a9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,610 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:31:10" (4/4) ... [2024-09-25 00:31:10,611 INFO L79 RefereeObserver]: Analyzing ICFG fibo_2calls_6-1.c [2024-09-25 00:31:10,614 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:31:10,619 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-25 00:31:10,619 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo2Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 00:31:10,619 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo1Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 00:31:10,620 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 00:31:10,668 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 00:31:10,669 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:31:10,669 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:31:10,670 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:31:10,670 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:31:10,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,684 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 00:31:10,685 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,685 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:31:10,685 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:31:10,686 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:31:10,686 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:31:10,752 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 00:31:10,756 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:31:10,756 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:31:10,756 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:31:10,756 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:31:10,756 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,802 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 00:31:10,802 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,802 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:31:10,802 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:31:10,804 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:31:10,818 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:31:10,846 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 00:31:10,851 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:31:10,852 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:31:10,855 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:31:10,855 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:31:10,855 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,885 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 00:31:10,886 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:31:10,889 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:31:10,889 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:31:10,889 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:31:10,899 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:31:10,907 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibo1Err0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 00:31:10,916 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-25 00:31:10,919 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@472007a9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 12:31:10, skipping insertion in model container [2024-09-25 00:31:10,919 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 00:31:10,921 INFO L158 Benchmark]: Toolchain (without parser) took 852.67ms. Allocated memory is still 197.1MB. Free memory was 139.3MB in the beginning and 89.3MB in the end (delta: 50.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-09-25 00:31:10,921 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 197.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:31:10,921 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:31:10,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.89ms. Allocated memory is still 197.1MB. Free memory was 139.3MB in the beginning and 126.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:31:10,922 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 197.1MB. Free memory was 126.1MB in the beginning and 124.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:31:10,926 INFO L158 Benchmark]: RCFGBuilder took 263.18ms. Allocated memory is still 197.1MB. Free memory was 124.2MB in the beginning and 110.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:31:10,927 INFO L158 Benchmark]: Referee took 315.96ms. Allocated memory is still 197.1MB. Free memory was 110.2MB in the beginning and 89.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-25 00:31:10,933 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 main to check that a call to reach_error is unreachable at line 41. One counterexample starts in and ends in result=0, x=6. Annotation is not valid for all loop-free paths from entry of procedure fibo2 to exit of procedure fibo2. One counterexample starts in \old(n)=2 and ends in \old(n)=2, \result=4, n=2. Annotation is valid for all loop-free paths from entry of procedure fibo1 to exit of procedure fibo1. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 197.1MB. Free memory is still 165.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 197.1MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.89ms. Allocated memory is still 197.1MB. Free memory was 139.3MB in the beginning and 126.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 197.1MB. Free memory was 126.1MB in the beginning and 124.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.18ms. Allocated memory is still 197.1MB. Free memory was 124.2MB in the beginning and 110.2MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 315.96ms. Allocated memory is still 197.1MB. Free memory was 110.2MB in the beginning and 89.3MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-25 00:31:10,967 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...