This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:29:31,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:29:31,372 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:29:31,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:29:31,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:29:31,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:29:31,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:29:31,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:29:31,398 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:29:31,399 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:29:31,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:29:31,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:29:31,400 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:29:31,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:29:31,401 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:29:31,401 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:29:31,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:29:31,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:29:31,402 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:29:31,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:29:31,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:29:31,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:29:31,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:29:31,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:29:31,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:29:31,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:29:31,407 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:29:31,407 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:29:31,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:29:31,408 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:29:31,408 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:29:31,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:29:31,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:29:31,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:31,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:29:31,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:29:31,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:29:31,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:29:31,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:29:31,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:29:31,412 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:29:31,413 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:29:31,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:29:31,413 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:29:31,688 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:29:31,738 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:29:31,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:29:31,741 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:29:31,743 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:29:31,744 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-20 13:29:33,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:29:33,495 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:29:33,497 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-20 13:29:33,507 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/481b49d8e/6a32dd541c6e47e1837b71244dbe7f6c/FLAGe392f24fc [2024-09-20 13:29:33,531 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/481b49d8e/6a32dd541c6e47e1837b71244dbe7f6c [2024-09-20 13:29:33,534 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:29:33,535 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:29:33,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml [2024-09-20 13:29:33,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:29:33,587 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:29:33,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:33,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:29:33,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:29:33,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/2) ... [2024-09-20 13:29:33,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c39ec7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:33, skipping insertion in model container [2024-09-20 13:29:33,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/2) ... [2024-09-20 13:29:33,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@31368a08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:33, skipping insertion in model container [2024-09-20 13:29:33,601 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:33" (2/2) ... [2024-09-20 13:29:33,602 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c39ec7 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:33, skipping insertion in model container [2024-09-20 13:29:33,602 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:33" (2/2) ... [2024-09-20 13:29:33,608 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:29:33,611 INFO L1541 ArrayList]: Function contract at [L7]: requires null, ensures ((0 < \old(n)) || (\result == 0)) [2024-09-20 13:29:33,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:29:33,802 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_7-1.c[741,754] [2024-09-20 13:29:33,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:33,824 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-20 13:29:33,863 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_7-1.c[741,754] [2024-09-20 13:29:33,865 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:33,882 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:29:33,883 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:33 WrapperNode [2024-09-20 13:29:33,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:33,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:29:33,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:29:33,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:29:33,897 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,898 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,904 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,917 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure fibo is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:29:33,917 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,917 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,922 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,923 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,924 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,925 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,930 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:29:33,931 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:29:33,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:29:33,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:29:33,932 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 20.09 01:29:33" (1/1) ... [2024-09-20 13:29:33,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:33,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:29:33,968 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) [2024-09-20 13:29:33,971 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 [2024-09-20 13:29:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:29:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:29:34,019 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:29:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-20 13:29:34,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:29:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:29:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:29:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:29:34,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:29:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:29:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:29:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:29:34,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:29:34,103 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:29:34,105 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:29:34,249 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:29:34,277 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:29:34,278 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:29:34,278 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:34 BoogieIcfgContainer [2024-09-20 13:29:34,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:29:34,279 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:29:34,279 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:29:34,280 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:29:34,281 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:29:33" (1/4) ... [2024-09-20 13:29:34,282 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43c446a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:29:34, skipping insertion in model container [2024-09-20 13:29:34,282 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:33" (2/4) ... [2024-09-20 13:29:34,283 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43c446a2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:29:34, skipping insertion in model container [2024-09-20 13:29:34,283 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 20.09 01:29:33" (3/4) ... [2024-09-20 13:29:34,283 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43c446a2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:29:34, skipping insertion in model container [2024-09-20 13:29:34,284 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:34" (4/4) ... [2024-09-20 13:29:34,285 INFO L79 RefereeObserver]: Analyzing ICFG fibo_7-1.c [2024-09-20 13:29:34,288 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:29:34,290 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-20 13:29:34,290 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fiboErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:29:34,290 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-20 13:29:34,336 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:29:34,340 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:34,340 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:34,341 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:34,342 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:34,344 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:34,364 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:29:34,365 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:34,365 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:34,365 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:34,366 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:34,367 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:34,401 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:29:34,401 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:34,401 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:34,402 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:34,402 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:34,402 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:34,430 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-20 13:29:34,430 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:34,431 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:34,431 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:34,431 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:34,446 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:34,451 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fiboErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:29:34,458 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:29:34,459 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@43c446a2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:29:34, skipping insertion in model container [2024-09-20 13:29:34,459 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:29:34,463 INFO L158 Benchmark]: Toolchain (without parser) took 872.52ms. Allocated memory is still 167.8MB. Free memory was 132.6MB in the beginning and 122.4MB in the end (delta: 10.1MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2024-09-20 13:29:34,465 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:34,466 INFO L158 Benchmark]: Witness Parser took 0.55ms. Allocated memory is still 167.8MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:34,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.04ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 118.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:29:34,468 INFO L158 Benchmark]: Boogie Preprocessor took 46.01ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 117.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:34,468 INFO L158 Benchmark]: RCFGBuilder took 347.35ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 132.9MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:29:34,469 INFO L158 Benchmark]: Referee took 179.78ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 122.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:29:34,473 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 29. One counterexample starts in and ends in result=0, x=7. Annotation is valid for all loop-free paths from entry of procedure fibo to exit of procedure fibo. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.55ms. Allocated memory is still 167.8MB. Free memory is still 134.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.04ms. Allocated memory is still 167.8MB. Free memory was 131.5MB in the beginning and 118.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.01ms. Allocated memory is still 167.8MB. Free memory was 118.9MB in the beginning and 117.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 347.35ms. Allocated memory is still 167.8MB. Free memory was 117.9MB in the beginning and 132.9MB in the end (delta: -15.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 179.78ms. Allocated memory is still 167.8MB. Free memory was 132.9MB in the beginning and 122.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:29:34,499 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...