./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive-simple/fibo_7-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:54:24,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:24,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:24,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:24,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:24,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:24,297 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:24,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:24,298 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:24,298 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:24,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:24,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:24,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:24,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:24,300 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:24,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:24,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:24,301 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:24,302 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:24,302 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:24,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:24,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:24,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:24,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:24,304 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:24,304 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:24,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:24,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:24,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:24,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:24,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:24,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:24,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:24,306 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:24,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:24,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:24,311 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:24,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:24,311 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:24,312 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:24,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:24,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:24,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:24,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:24,592 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:24,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:24,598 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:24,598 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:24,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-11 20:54:26,066 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:26,223 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:26,224 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-11 20:54:26,229 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/6825391db/7fccea52c45d4830a707cfd16a2b996d/FLAG7f0dce282 [2024-09-11 20:54:26,632 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/6825391db/7fccea52c45d4830a707cfd16a2b996d [2024-09-11 20:54:26,634 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:26,635 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:26,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml [2024-09-11 20:54:26,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:26,688 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:26,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:26,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:26,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:26,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:26" (1/2) ... [2024-09-11 20:54:26,699 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7072e21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:26, skipping insertion in model container [2024-09-11 20:54:26,699 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:26" (1/2) ... [2024-09-11 20:54:26,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@63eecbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:26, skipping insertion in model container [2024-09-11 20:54:26,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:26" (2/2) ... [2024-09-11 20:54:26,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7072e21a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26, skipping insertion in model container [2024-09-11 20:54:26,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:26" (2/2) ... [2024-09-11 20:54:26,708 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:26,712 INFO L1541 ArrayList]: Location invariant before [L28-L30] (7 <= x) [2024-09-11 20:54:26,712 INFO L1541 ArrayList]: Function contract at [L7]: requires null, ensures (((((((((((\result == 3) && (4 == \old(n))) || ((2 == \old(n)) && (\result == 1))) || (7 < \old(n))) || (\old(n) < 1)) || ((3 == \old(n)) && (\result == 2))) || ((\result == 8) && (6 == \old(n)))) || ((\result == 1) && (1 == \old(n)))) || ((\result == 13) && (7 == \old(n)))) || ((\result == 5) && (5 == \old(n)))) && ((0 < \old(n)) || (\result == 0))) [2024-09-11 20:54:26,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:26,886 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_7-1.c[741,754] [2024-09-11 20:54:26,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:26,901 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-11 20:54:26,938 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_7-1.c[741,754] Start Parsing Local [2024-09-11 20:54:26,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:26,954 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:26,955 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26 WrapperNode [2024-09-11 20:54:26,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:26,956 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:26,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:26,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:26,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,976 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 [2024-09-11 20:54:26,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,984 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:26,985 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:26,985 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:26,985 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:26,986 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (1/1) ... [2024-09-11 20:54:26,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:26,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:27,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:54:27,014 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-11 20:54:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:27,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:54:27,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:27,109 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:27,111 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:27,283 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:27,283 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:27,308 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:27,308 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:27,309 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:27 BoogieIcfgContainer [2024-09-11 20:54:27,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:27,310 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:27,310 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:27,311 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:27,311 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:26" (1/4) ... [2024-09-11 20:54:27,311 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4963098a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:27, skipping insertion in model container [2024-09-11 20:54:27,312 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:26" (2/4) ... [2024-09-11 20:54:27,312 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4963098a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:27, skipping insertion in model container [2024-09-11 20:54:27,312 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:26" (3/4) ... [2024-09-11 20:54:27,312 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4963098a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:27, skipping insertion in model container [2024-09-11 20:54:27,312 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:27" (4/4) ... [2024-09-11 20:54:27,314 INFO L79 RefereeObserver]: Analyzing ICFG fibo_7-1.c [2024-09-11 20:54:27,329 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:27,330 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fiboErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:54:27,331 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:54:27,331 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:27,331 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:27,388 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:54:27,389 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:27,389 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:27,390 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:27,394 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:27,396 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,461 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:54:27,463 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,463 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:27,463 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:27,464 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:27,476 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:27,511 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fiboErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:27,525 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:27,527 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:27,527 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:27,527 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:27,527 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:27,528 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,535 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:27,535 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,536 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:27,536 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:27,536 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:27,536 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:27,541 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:27,553 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:27,553 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:27,553 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:27,553 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:27,554 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:27,554 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,565 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:27,565 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:27,565 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:27,566 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:27,566 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:27,566 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:27,570 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:27,573 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:27,573 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4963098a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:27, skipping insertion in model container [2024-09-11 20:54:27,574 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:27,575 INFO L158 Benchmark]: Toolchain (without parser) took 885.98ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 94.5MB in the beginning and 163.4MB in the end (delta: -68.9MB). Peak memory consumption was 41.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:27,576 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:27,576 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:27,578 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.25ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 81.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:27,579 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 151.0MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:27,579 INFO L158 Benchmark]: RCFGBuilder took 323.90ms. Allocated memory is still 151.0MB. Free memory was 79.3MB in the beginning and 64.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:54:27,581 INFO L158 Benchmark]: Referee took 264.02ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 64.7MB in the beginning and 163.4MB in the end (delta: -98.8MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:27,584 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from entry of procedure main to check that a call to reach_error is unreachable at line 29. Annotation is valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 28. 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 0.18ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 116.5MB in the end (delta: 24.6kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.17ms. Allocated memory is still 151.0MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.25ms. Allocated memory is still 151.0MB. Free memory was 94.1MB in the beginning and 81.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 151.0MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 323.90ms. Allocated memory is still 151.0MB. Free memory was 79.3MB in the beginning and 64.7MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 264.02ms. Allocated memory was 151.0MB in the beginning and 209.7MB in the end (delta: 58.7MB). Free memory was 64.7MB in the beginning and 163.4MB in the end (delta: -98.8MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:27,614 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive-simple/fibo_7-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:54:29,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:29,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:54:29,868 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:29,868 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:29,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:29,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:29,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:29,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:29,904 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:29,904 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:29,904 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:29,905 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:29,905 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:29,905 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:29,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:29,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:29,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:29,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:29,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:29,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:29,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:29,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:29,911 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:54:29,911 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:54:29,911 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:29,911 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:54:29,912 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:29,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:29,912 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:29,912 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:29,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:29,913 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:29,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:29,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:29,913 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:29,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:29,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:29,914 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:54:29,914 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:54:29,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:29,916 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:29,917 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:29,917 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:29,917 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:54:29,917 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:30,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:30,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:30,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:30,277 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:30,277 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:30,278 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-11 20:54:31,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:32,003 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:32,004 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-09-11 20:54:32,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/76eb6821c/c3bc589c2f124004824807d3b49c55b0/FLAG9b01dd57b [2024-09-11 20:54:32,361 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/76eb6821c/c3bc589c2f124004824807d3b49c55b0 [2024-09-11 20:54:32,363 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:32,364 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:32,364 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_7-1.yml/witness-2.1.yml [2024-09-11 20:54:32,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:32,411 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:32,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:32,414 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:32,419 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:32,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:32" (1/2) ... [2024-09-11 20:54:32,422 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d8da25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:32, skipping insertion in model container [2024-09-11 20:54:32,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:32" (1/2) ... [2024-09-11 20:54:32,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@411bb0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:32, skipping insertion in model container [2024-09-11 20:54:32,424 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:32" (2/2) ... [2024-09-11 20:54:32,425 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d8da25 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32, skipping insertion in model container [2024-09-11 20:54:32,425 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:32" (2/2) ... [2024-09-11 20:54:32,432 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:32,433 INFO L1541 ArrayList]: Location invariant before [L28-L30] (7 <= x) [2024-09-11 20:54:32,433 INFO L1541 ArrayList]: Function contract at [L7]: requires null, ensures (((((((((((\result == 3) && (4 == \old(n))) || ((2 == \old(n)) && (\result == 1))) || (7 < \old(n))) || (\old(n) < 1)) || ((3 == \old(n)) && (\result == 2))) || ((\result == 8) && (6 == \old(n)))) || ((\result == 1) && (1 == \old(n)))) || ((\result == 13) && (7 == \old(n)))) || ((\result == 5) && (5 == \old(n)))) && ((0 < \old(n)) || (\result == 0))) [2024-09-11 20:54:32,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:32,633 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_7-1.c[741,754] [2024-09-11 20:54:32,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:32,661 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-11 20:54:32,710 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_7-1.c[741,754] Start Parsing Local [2024-09-11 20:54:32,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:32,733 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:32,734 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32 WrapperNode [2024-09-11 20:54:32,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:32,736 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:32,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:32,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:32,748 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,767 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 [2024-09-11 20:54:32,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,783 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,785 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:32,786 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:32,786 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:32,786 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:32,788 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (1/1) ... [2024-09-11 20:54:32,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:32,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:32,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:54:32,823 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:54:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:32,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:32,870 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-11 20:54:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-11 20:54:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:54:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:32,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:54:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:54:32,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:32,949 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:32,953 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:33,180 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:33,180 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:33,228 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:33,228 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:33,229 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:33 BoogieIcfgContainer [2024-09-11 20:54:33,229 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:33,229 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:33,229 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:33,232 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:33,233 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:32" (1/4) ... [2024-09-11 20:54:33,233 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57229f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:33, skipping insertion in model container [2024-09-11 20:54:33,233 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:54:32" (2/4) ... [2024-09-11 20:54:33,233 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57229f7e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:33, skipping insertion in model container [2024-09-11 20:54:33,234 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:32" (3/4) ... [2024-09-11 20:54:33,234 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57229f7e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:33, skipping insertion in model container [2024-09-11 20:54:33,234 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:33" (4/4) ... [2024-09-11 20:54:33,235 INFO L79 RefereeObserver]: Analyzing ICFG fibo_7-1.c [2024-09-11 20:54:33,240 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:33,241 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fiboErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:54:33,242 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:54:33,242 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:33,243 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:33,291 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-11 20:54:33,295 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:33,295 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:33,296 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:33,297 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:33,299 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,359 INFO L101 BaseMinimizeStates]: Removed 16 edges and 6 locations by large block encoding [2024-09-11 20:54:33,363 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,363 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:33,364 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:33,364 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:33,378 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:33,421 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fiboErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:33,433 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:33,433 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:33,433 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:33,433 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:33,434 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:33,434 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,442 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:33,442 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,442 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:33,442 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:33,443 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:33,443 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:33,444 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:33,456 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:33,456 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:33,463 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:33,463 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:33,464 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:33,464 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,472 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:33,472 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:33,472 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:33,472 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:33,473 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:33,473 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:33,475 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:33,480 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:33,481 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57229f7e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:33, skipping insertion in model container [2024-09-11 20:54:33,481 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:33,483 INFO L158 Benchmark]: Toolchain (without parser) took 1072.08ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 34.6MB in the beginning and 55.0MB in the end (delta: -20.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:33,484 INFO L158 Benchmark]: CDTParser took 0.99ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:33,485 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:33,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.98ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 53.6MB in the end (delta: -19.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:33,487 INFO L158 Benchmark]: Boogie Preprocessor took 49.34ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 51.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:33,488 INFO L158 Benchmark]: RCFGBuilder took 443.11ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 58.0MB in the end (delta: -6.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:33,489 INFO L158 Benchmark]: Referee took 252.26ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 55.5MB in the end (delta: 2.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:33,492 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness Annotation is a valid proof of correctness Annotation is valid for all loop-free paths from entry of procedure fibo to exit of procedure fibo. 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 29. Annotation is valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 28. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.11ms. Allocated memory is still 62.9MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.98ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 53.6MB in the end (delta: -19.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.34ms. Allocated memory is still 79.7MB. Free memory was 53.6MB in the beginning and 51.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.11ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 58.0MB in the end (delta: -6.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Referee took 252.26ms. Allocated memory is still 79.7MB. Free memory was 58.0MB in the beginning and 55.5MB in the end (delta: 2.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:33,524 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN