This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:11:13,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:11:13,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:11:13,462 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:11:13,462 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:11:13,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:11:13,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:11:13,487 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:11:13,488 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:11:13,491 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:11:13,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:11:13,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:11:13,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:11:13,492 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:11:13,492 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:11:13,493 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:11:13,493 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:11:13,493 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:11:13,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:11:13,494 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:11:13,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:11:13,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:11:13,495 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:11:13,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:11:13,496 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:11:13,496 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:11:13,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:11:13,496 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:11:13,496 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:11:13,497 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:11:13,497 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:11:13,498 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:11:13,498 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:11:13,498 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:11:13,499 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:11:13,499 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:11:13,499 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:11:13,499 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:11:13,499 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:11:13,500 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:11:13,500 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:11:13,500 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:11:13,500 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:11:13,501 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:11:13,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:11:13,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:11:13,726 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:11:13,727 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:11:13,728 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:11:13,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_10-1.yml/witness-2.1.yml [2024-09-13 10:11:13,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:11:13,806 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:11:13,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c [2024-09-13 10:11:14,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:11:15,956 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:11:15,957 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_10-1.c [2024-09-13 10:11:15,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c6ad4087c/c96154e36418464d8ead1f3764893fd0/FLAG42bdb5b74 [2024-09-13 10:11:15,984 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c6ad4087c/c96154e36418464d8ead1f3764893fd0 [2024-09-13 10:11:15,985 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:11:15,986 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:11:15,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:11:15,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:11:15,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:11:15,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:11:13" (1/2) ... [2024-09-13 10:11:15,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707ab6a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:11:15, skipping insertion in model container [2024-09-13 10:11:15,994 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:11:13" (1/2) ... [2024-09-13 10:11:15,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b57bab0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:11:15, skipping insertion in model container [2024-09-13 10:11:15,995 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:11:15" (2/2) ... [2024-09-13 10:11:15,996 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3707ab6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:15, skipping insertion in model container [2024-09-13 10:11:15,996 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:11:15" (2/2) ... [2024-09-13 10:11:16,001 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:11:16,001 INFO L1541 ArrayList]: Function contract at [L19]: requires null, ensures (((((5 == \result) || (\old(n) < 4)) || (6 < \old(n))) && (((\result == 0) || (\old(n) == 1)) || (1 < \old(n)))) && (((\result == 1) || (\old(n) < 1)) || (3 < \old(n)))) [2024-09-13 10:11:16,002 INFO L1541 ArrayList]: Function contract at [L9]: requires null, ensures (((\result == 0) || (\old(n) == 1)) || (2 < \old(n))) [2024-09-13 10:11:16,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:11:16,184 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-simple/fibo_2calls_10-1.c[949,962] [2024-09-13 10:11:16,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:11:16,211 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 10:11:16,253 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-simple/fibo_2calls_10-1.c[949,962] [2024-09-13 10:11:16,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:11:16,268 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:11:16,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16 WrapperNode [2024-09-13 10:11:16,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:11:16,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:11:16,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:11:16,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:11:16,279 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,296 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 [2024-09-13 10:11:16,296 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,297 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,304 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,305 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:11:16,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:11:16,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:11:16,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:11:16,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (1/1) ... [2024-09-13 10:11:16,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:11:16,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:11:16,340 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) [2024-09-13 10:11:16,342 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 [2024-09-13 10:11:16,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:11:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:11:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:11:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-13 10:11:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-13 10:11:16,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:11:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 10:11:16,379 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:11:16,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 10:11:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:11:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-13 10:11:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-13 10:11:16,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:11:16,432 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:11:16,434 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:11:16,564 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:11:16,581 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:11:16,581 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:11:16,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:11:16 BoogieIcfgContainer [2024-09-13 10:11:16,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:11:16,582 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:11:16,582 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:11:16,583 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:11:16,583 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:11:13" (1/4) ... [2024-09-13 10:11:16,584 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77e5ccad and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:11:16, skipping insertion in model container [2024-09-13 10:11:16,584 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:11:15" (2/4) ... [2024-09-13 10:11:16,584 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77e5ccad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:11:16, skipping insertion in model container [2024-09-13 10:11:16,584 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:16" (3/4) ... [2024-09-13 10:11:16,585 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77e5ccad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:11:16, skipping insertion in model container [2024-09-13 10:11:16,585 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:11:16" (4/4) ... [2024-09-13 10:11:16,586 INFO L79 RefereeObserver]: Analyzing ICFG fibo_2calls_10-1.c [2024-09-13 10:11:16,588 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:11:16,589 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-13 10:11:16,589 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo2Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-13 10:11:16,590 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo1Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-13 10:11:16,590 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-13 10:11:16,627 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-13 10:11:16,630 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:16,630 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:16,631 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:16,631 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:16,633 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,656 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-13 10:11:16,657 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,657 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:16,657 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:16,658 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:16,658 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:16,693 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-13 10:11:16,694 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:16,694 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:16,694 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:16,694 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:16,695 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,715 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-13 10:11:16,715 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,716 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:16,716 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:16,716 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:16,722 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:16,736 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-13 10:11:16,736 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:16,737 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:16,737 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:16,737 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:16,737 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,751 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-13 10:11:16,751 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:16,751 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:16,752 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:16,752 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:16,755 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:16,766 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-13 10:11:16,767 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@77e5ccad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 10:11:16, skipping insertion in model container [2024-09-13 10:11:16,767 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-13 10:11:16,768 INFO L158 Benchmark]: Toolchain (without parser) took 781.60ms. Allocated memory was 178.3MB in the beginning and 232.8MB in the end (delta: 54.5MB). Free memory was 94.8MB in the beginning and 162.7MB in the end (delta: -68.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:16,769 INFO L158 Benchmark]: Witness Parser took 0.56ms. Allocated memory is still 178.3MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:16,769 INFO L158 Benchmark]: CDTParser took 1.16ms. Allocated memory is still 178.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:16,769 INFO L158 Benchmark]: CACSL2BoogieTranslator took 281.49ms. Allocated memory was 178.3MB in the beginning and 232.8MB in the end (delta: 54.5MB). Free memory was 94.6MB in the beginning and 197.3MB in the end (delta: -102.8MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-09-13 10:11:16,770 INFO L158 Benchmark]: Boogie Preprocessor took 42.06ms. Allocated memory is still 232.8MB. Free memory was 197.3MB in the beginning and 195.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:11:16,770 INFO L158 Benchmark]: RCFGBuilder took 270.10ms. Allocated memory is still 232.8MB. Free memory was 195.2MB in the beginning and 181.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:11:16,771 INFO L158 Benchmark]: Referee took 184.50ms. Allocated memory is still 232.8MB. Free memory was 181.6MB in the beginning and 162.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-13 10:11:16,773 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=10. Annotation is not valid for all loop-free paths from entry of procedure fibo1 to exit of procedure fibo1. One counterexample starts in \old(n)=2 and ends in \old(n)=2, \result=1, n=2. 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=0, n=2. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.56ms. Allocated memory is still 178.3MB. Free memory is still 129.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.16ms. Allocated memory is still 178.3MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 281.49ms. Allocated memory was 178.3MB in the beginning and 232.8MB in the end (delta: 54.5MB). Free memory was 94.6MB in the beginning and 197.3MB in the end (delta: -102.8MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.06ms. Allocated memory is still 232.8MB. Free memory was 197.3MB in the beginning and 195.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.10ms. Allocated memory is still 232.8MB. Free memory was 195.2MB in the beginning and 181.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 184.50ms. Allocated memory is still 232.8MB. Free memory was 181.6MB in the beginning and 162.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:11:16,795 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...