./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_8-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_8-1.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-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:49:33,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:49:33,617 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:49:33,620 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:49:33,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:49:33,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:49:33,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:49:33,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:49:33,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:49:33,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:49:33,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:49:33,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:49:33,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:49:33,637 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:49:33,638 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:49:33,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:49:33,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:49:33,642 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:49:33,642 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:49:33,642 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:49:33,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:49:33,642 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:49:33,643 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:49:33,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:33,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:49:33,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:49:33,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:49:33,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:49:33,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:49:33,645 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:49:33,645 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:49:33,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:49:33,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:49:33,646 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:49:33,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:49:33,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:49:33,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:49:33,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:49:33,854 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:49:33,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-25 11:49:35,297 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:49:35,454 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:49:35,455 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_8-1.c [2024-09-25 11:49:35,460 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c94fa93bf/9b7b5405d64c41d89bf4505d602a4a25/FLAG2cdb9738a [2024-09-25 11:49:35,471 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c94fa93bf/9b7b5405d64c41d89bf4505d602a4a25 [2024-09-25 11:49:35,473 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:49:35,474 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:49:35,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_8-1.yml/witness-2.1.yml [2024-09-25 11:49:35,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:49:35,514 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:49:35,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:35,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:49:35,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:49:35,520 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:35" (1/2) ... [2024-09-25 11:49:35,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2725d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,522 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:35" (1/2) ... [2024-09-25 11:49:35,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3fa42a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,524 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:35" (2/2) ... [2024-09-25 11:49:35,524 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b2725d8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:35, skipping insertion in model container [2024-09-25 11:49:35,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:35" (2/2) ... [2024-09-25 11:49:35,528 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:49:35,530 INFO L1541 ArrayList]: Function contract at [L19]: requires null, ensures ((((n < 6) || (\result == 13)) || (7 < n)) && (((\result == 0) || (n == 1)) || (1 < n))) [2024-09-25 11:49:35,530 INFO L1541 ArrayList]: Function contract at [L9]: requires null, ensures (((((((n < 5) || ((5 == n) && (5 == \result))) || (8 == \result)) || (6 < n)) && ((n != 1) || (\result == 1))) && (((\result == 0) || ((n == 1) && (\result == 1))) || (2 < n))) && ((21 == \result) || (n != 8))) [2024-09-25 11:49:35,544 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:49:35,669 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_8-1.c[947,960] [2024-09-25 11:49:35,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:35,682 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-25 11:49:35,716 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_8-1.c[947,960] [2024-09-25 11:49:35,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:35,727 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:49:35,727 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:35 WrapperNode [2024-09-25 11:49:35,728 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:35,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:49:35,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:49:35,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:49:35,737 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,737 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,743 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,753 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 11:49:35,753 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,753 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,757 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,758 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,759 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,760 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:49:35,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:49:35,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:49:35,765 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:49:35,766 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 11:49:35" (1/1) ... [2024-09-25 11:49:35,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:35,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:49:35,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 11:49:35,808 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 11:49:35,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:49:35,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:49:35,878 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:49:35,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-25 11:49:35,879 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-25 11:49:35,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-25 11:49:35,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:49:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:49:35,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:49:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:49:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:49:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:49:35,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:49:35,982 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:49:35,985 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:49:36,096 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:49:36,110 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:49:36,111 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:49:36,111 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:36 BoogieIcfgContainer [2024-09-25 11:49:36,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:49:36,112 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:49:36,112 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:49:36,112 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:49:36,112 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:49:35" (1/4) ... [2024-09-25 11:49:36,113 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@593e2e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:36, skipping insertion in model container [2024-09-25 11:49:36,113 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:35" (2/4) ... [2024-09-25 11:49:36,113 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@593e2e4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:36, skipping insertion in model container [2024-09-25 11:49:36,113 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 11:49:35" (3/4) ... [2024-09-25 11:49:36,114 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@593e2e4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:36, skipping insertion in model container [2024-09-25 11:49:36,114 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 11:49:36" (4/4) ... [2024-09-25 11:49:36,114 INFO L79 RefereeObserver]: Analyzing ICFG fibo_2calls_8-1.c [2024-09-25 11:49:36,120 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:49:36,121 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 5 edges. [2024-09-25 11:49:36,121 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo2Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:49:36,121 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo1Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-25 11:49:36,122 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:49:36,149 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-25 11:49:36,150 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:36,151 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:36,151 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:36,152 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:36,153 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,164 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-25 11:49:36,165 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,165 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:36,165 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:36,165 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:36,166 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:36,178 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:49:36,187 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:49:36,187 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:36,187 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:36,188 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:36,188 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:36,188 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,206 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 11:49:36,207 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,207 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:36,207 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:36,207 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:36,238 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:36,259 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-25 11:49:36,259 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:36,259 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:36,259 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:36,260 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:36,260 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,278 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-25 11:49:36,278 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:36,278 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:36,278 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:36,279 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:36,281 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:36,292 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-25 11:49:36,292 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@593e2e4d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:49:36, skipping insertion in model container [2024-09-25 11:49:36,292 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:49:36,294 INFO L158 Benchmark]: Toolchain (without parser) took 779.22ms. Allocated memory is still 218.1MB. Free memory was 145.6MB in the beginning and 178.5MB in the end (delta: -32.9MB). Peak memory consumption was 53.1MB. Max. memory is 16.1GB. [2024-09-25 11:49:36,294 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:36,295 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 218.1MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:36,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 218.1MB. Free memory was 145.3MB in the beginning and 132.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:49:36,295 INFO L158 Benchmark]: Boogie Preprocessor took 36.16ms. Allocated memory is still 218.1MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:49:36,296 INFO L158 Benchmark]: RCFGBuilder took 346.25ms. Allocated memory is still 218.1MB. Free memory was 130.2MB in the beginning and 115.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:49:36,296 INFO L158 Benchmark]: Referee took 180.96ms. Allocated memory is still 218.1MB. Free memory was 115.9MB in the beginning and 178.5MB in the end (delta: -62.6MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2024-09-25 11:49:36,299 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 fibo2 to exit of procedure fibo2. One counterexample starts in \old(n)=6 and ends in \old(n)=6, \result=1, n=6. 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=2, n=2. 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 41. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 123.7MB. Free memory was 87.2MB in the beginning and 87.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 218.1MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 218.1MB. Free memory was 145.3MB in the beginning and 132.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.16ms. Allocated memory is still 218.1MB. Free memory was 132.3MB in the beginning and 130.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.25ms. Allocated memory is still 218.1MB. Free memory was 130.2MB in the beginning and 115.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 180.96ms. Allocated memory is still 218.1MB. Free memory was 115.9MB in the beginning and 178.5MB in the end (delta: -62.6MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-25 11:49:36,330 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE