./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_2-2.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_2calls_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_2-2.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 20:54:20,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:20,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:20,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:20,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:20,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:20,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:20,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:20,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:20,360 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:20,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:20,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:20,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:20,374 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:20,374 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:20,374 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:20,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:20,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:20,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:20,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:20,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:20,379 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:20,380 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:20,380 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:20,380 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:20,380 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:20,381 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:20,381 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:20,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:20,382 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:20,382 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:20,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:20,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:20,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:20,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:20,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:20,383 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:20,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:20,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:20,384 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:20,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:20,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:20,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:20,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:20,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:20,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:20,636 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:20,636 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:20,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2024-09-11 20:54:22,105 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:22,270 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:22,271 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2024-09-11 20:54:22,280 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/fb95f51b4/f4b0bebb5feb43168babf723cedf5807/FLAG525fa58aa [2024-09-11 20:54:22,678 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/fb95f51b4/f4b0bebb5feb43168babf723cedf5807 [2024-09-11 20:54:22,680 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:22,681 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:22,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_2-2.yml/witness-2.1.yml [2024-09-11 20:54:22,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:22,732 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:22,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:22,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:22,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:22,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:22" (1/2) ... [2024-09-11 20:54:22,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590a7ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:22, skipping insertion in model container [2024-09-11 20:54:22,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:22" (1/2) ... [2024-09-11 20:54:22,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60b9cf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:22, skipping insertion in model container [2024-09-11 20:54:22,746 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 08:54:22" (2/2) ... [2024-09-11 20:54:22,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590a7ecb and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:22, skipping insertion in model container [2024-09-11 20:54:22,747 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 08:54:22" (2/2) ... [2024-09-11 20:54:22,754 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:22,756 INFO L1541 ArrayList]: Location invariant before [L40-L42] (2 == x) [2024-09-11 20:54:22,757 INFO L1541 ArrayList]: Function contract at [L9]: requires null, ensures ((2 != \old(n)) || (\result == 1)) [2024-09-11 20:54:22,757 INFO L1541 ArrayList]: Function contract at [L19]: requires null, ensures (((\result == 1) || (\old(n) != 1)) && ((\result == 0) || (0 < \old(n)))) [2024-09-11 20:54:22,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:22,971 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] [2024-09-11 20:54:22,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:22,998 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:54:23,046 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] Start Parsing Local [2024-09-11 20:54:23,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:23,087 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:23,088 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:23 WrapperNode [2024-09-11 20:54:23,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:23,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:23,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:23,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:23,112 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,112 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,118 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,142 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 [2024-09-11 20:54:23,142 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,143 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,152 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,154 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,156 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,157 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,158 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:23,159 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:23,159 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:23,160 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:23,160 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 08:54:23" (1/1) ... [2024-09-11 20:54:23,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:23,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:23,188 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 20:54:23,191 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 20:54:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-11 20:54:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-11 20:54:23,236 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:54:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:23,297 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:23,299 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:23,466 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:23,467 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:23,493 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:23,493 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:23,494 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:23 BoogieIcfgContainer [2024-09-11 20:54:23,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:23,494 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:23,494 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:23,495 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:23,496 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:22" (1/4) ... [2024-09-11 20:54:23,496 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df17aab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,496 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 08:54:22" (2/4) ... [2024-09-11 20:54:23,496 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df17aab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,497 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 08:54:23" (3/4) ... [2024-09-11 20:54:23,497 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df17aab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,497 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 08:54:23" (4/4) ... [2024-09-11 20:54:23,498 INFO L79 RefereeObserver]: Analyzing ICFG fibo_2calls_2-2.c [2024-09-11 20:54:23,502 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:23,503 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo2Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:54:23,503 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:54:23,503 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo1Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:54:23,504 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:23,504 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:23,553 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:54:23,555 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:23,555 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:23,556 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:23,557 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:23,559 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,613 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:54:23,618 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,618 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:23,618 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:23,619 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:23,629 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:23,664 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibo2Err0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:23,683 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:23,687 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:23,687 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:23,688 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:23,688 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:23,688 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,691 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:23,694 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,694 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:23,695 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:23,695 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:23,695 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:23,697 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:23,713 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:54:23,714 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:23,715 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:23,715 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:23,715 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:23,715 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,734 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:54:23,736 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,736 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:23,736 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:23,736 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:23,740 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:23,748 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibo1Err0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:23,763 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:23,764 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:23,764 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:23,764 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:23,764 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:23,765 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,770 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:23,773 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:23,773 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:23,773 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:23,774 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:23,774 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:23,775 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:23,778 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:23,779 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5df17aab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,779 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:23,782 INFO L158 Benchmark]: Toolchain (without parser) took 1048.57ms. Allocated memory is still 163.6MB. Free memory was 95.5MB in the beginning and 102.2MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:23,783 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:23,783 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:23,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.79ms. Allocated memory is still 163.6MB. Free memory was 95.3MB in the beginning and 136.2MB in the end (delta: -40.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-11 20:54:23,784 INFO L158 Benchmark]: Boogie Preprocessor took 69.55ms. Allocated memory is still 163.6MB. Free memory was 136.2MB in the beginning and 134.3MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:23,785 INFO L158 Benchmark]: RCFGBuilder took 334.43ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 120.3MB in the end (delta: 14.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:23,785 INFO L158 Benchmark]: Referee took 284.57ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 102.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-11 20:54:23,788 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 invariant of correctness witness holds at line 40. Annotation is valid for all loop-free paths from entry of procedure fibo2 to exit of procedure fibo2. Annotation is valid for all loop-free paths from entry of procedure fibo1 to exit of procedure fibo1. 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 0.13ms. Allocated memory is still 104.9MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.14ms. Allocated memory is still 163.6MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.79ms. Allocated memory is still 163.6MB. Free memory was 95.3MB in the beginning and 136.2MB in the end (delta: -40.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.55ms. Allocated memory is still 163.6MB. Free memory was 136.2MB in the beginning and 134.3MB in the end (delta: 1.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 334.43ms. Allocated memory is still 163.6MB. Free memory was 134.3MB in the beginning and 120.3MB in the end (delta: 14.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 284.57ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 102.2MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:23,822 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 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_2calls_2-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_2-2.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 20:54:26,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:26,134 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:54:26,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:26,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:26,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:26,174 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:26,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:26,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:26,179 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:26,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:26,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:26,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:26,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:26,181 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:26,181 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:26,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:26,185 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:26,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:26,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:26,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:26,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:26,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:26,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:54:26,187 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:54:26,187 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:26,187 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:54:26,187 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:26,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:26,188 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:26,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:26,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:26,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:26,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:26,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:26,189 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:26,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:26,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:26,190 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:54:26,190 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:54:26,190 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:26,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:26,193 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:26,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:26,194 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:54:26,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:26,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:26,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:26,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:26,573 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:26,574 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:26,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_2calls_2-2.yml/witness-2.1.yml [2024-09-11 20:54:26,633 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:26,633 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:26,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2024-09-11 20:54:28,197 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:28,374 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:28,374 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2024-09-11 20:54:28,382 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7fc8b429a/31db035a91eb49adaea45791b8f2d4ae/FLAG284525e18 [2024-09-11 20:54:28,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7fc8b429a/31db035a91eb49adaea45791b8f2d4ae [2024-09-11 20:54:28,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:28,397 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:28,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:28,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:28,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:28,406 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" (1/2) ... [2024-09-11 20:54:28,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560cc09e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:28, skipping insertion in model container [2024-09-11 20:54:28,407 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" (1/2) ... [2024-09-11 20:54:28,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2734c9f2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:28, skipping insertion in model container [2024-09-11 20:54:28,409 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:28" (2/2) ... [2024-09-11 20:54:28,409 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560cc09e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28, skipping insertion in model container [2024-09-11 20:54:28,409 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:28" (2/2) ... [2024-09-11 20:54:28,420 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:28,421 INFO L1541 ArrayList]: Location invariant before [L40-L42] (2 == x) [2024-09-11 20:54:28,421 INFO L1541 ArrayList]: Function contract at [L19]: requires null, ensures (((\result == 1) || (\old(n) != 1)) && ((\result == 0) || (0 < \old(n)))) [2024-09-11 20:54:28,422 INFO L1541 ArrayList]: Function contract at [L9]: requires null, ensures ((2 != \old(n)) || (\result == 1)) [2024-09-11 20:54:28,441 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:28,651 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] [2024-09-11 20:54:28,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:28,677 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:54:28,721 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c[946,959] Start Parsing Local [2024-09-11 20:54:28,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:28,744 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:28,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28 WrapperNode [2024-09-11 20:54:28,745 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:28,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:28,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:28,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:28,762 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,762 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,782 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 [2024-09-11 20:54:28,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,782 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:28,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:28,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:28,804 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:28,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (1/1) ... [2024-09-11 20:54:28,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:28,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:28,838 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 20:54:28,846 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 20:54:28,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:28,897 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-09-11 20:54:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-09-11 20:54:28,898 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:28,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-09-11 20:54:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-09-11 20:54:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:28,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:54:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:54:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:54:28,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:28,980 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:28,985 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:29,225 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:29,226 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:29,260 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:29,261 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:29,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:29 BoogieIcfgContainer [2024-09-11 20:54:29,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:29,262 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:29,262 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:29,262 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:29,263 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" (1/4) ... [2024-09-11 20:54:29,263 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31eb28c and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:29, skipping insertion in model container [2024-09-11 20:54:29,264 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:28" (2/4) ... [2024-09-11 20:54:29,264 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31eb28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:29, skipping insertion in model container [2024-09-11 20:54:29,264 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:28" (3/4) ... [2024-09-11 20:54:29,265 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31eb28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:29, skipping insertion in model container [2024-09-11 20:54:29,266 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:29" (4/4) ... [2024-09-11 20:54:29,267 INFO L79 RefereeObserver]: Analyzing ICFG fibo_2calls_2-2.c [2024-09-11 20:54:29,270 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:29,271 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo2Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:54:29,271 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:54:29,271 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fibo1Err0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 9 edges. [2024-09-11 20:54:29,271 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:29,272 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:29,318 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-11 20:54:29,319 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:29,320 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:29,320 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:29,321 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:29,323 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,359 INFO L101 BaseMinimizeStates]: Removed 16 edges and 6 locations by large block encoding [2024-09-11 20:54:29,360 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,360 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:29,361 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:29,361 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:29,376 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:29,407 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibo2Err0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:29,426 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:29,426 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:29,427 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:29,427 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:29,427 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:29,427 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,431 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:29,431 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,431 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:29,431 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:29,431 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:29,432 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:29,433 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:29,446 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 9 edges [2024-09-11 20:54:29,446 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:29,446 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:29,447 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:29,447 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:29,447 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,474 INFO L101 BaseMinimizeStates]: Removed 16 edges and 6 locations by large block encoding [2024-09-11 20:54:29,474 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,475 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:29,475 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:29,475 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:29,480 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:29,484 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fibo1Err0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:29,496 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:29,496 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:29,497 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:29,497 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:29,497 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:29,497 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,501 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:29,502 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:29,502 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:29,502 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:29,502 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:29,502 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:29,504 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:29,508 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:29,509 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@31eb28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:29, skipping insertion in model container [2024-09-11 20:54:29,509 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:29,511 INFO L158 Benchmark]: Toolchain (without parser) took 1112.51ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 32.1MB in the beginning and 63.3MB in the end (delta: -31.1MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-09-11 20:54:29,511 INFO L158 Benchmark]: Witness Parser took 0.84ms. Allocated memory is still 46.1MB. Free memory was 23.2MB in the beginning and 23.1MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:29,512 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory is still 21.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:29,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.96ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 40.4MB in the end (delta: -8.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2024-09-11 20:54:29,513 INFO L158 Benchmark]: Boogie Preprocessor took 57.11ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:29,513 INFO L158 Benchmark]: RCFGBuilder took 457.09ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 41.9MB in the end (delta: -3.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:29,514 INFO L158 Benchmark]: Referee took 247.28ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 63.3MB in the end (delta: -21.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-09-11 20:54:29,517 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 fibo2 to exit of procedure fibo2. 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. Annotation is valid for all loop-free paths from entry of procedure fibo1 to exit of procedure fibo1. Annotation is valid for all loop-free paths from entry of procedure main to check that invariant of correctness witness holds at line 40. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.84ms. Allocated memory is still 46.1MB. Free memory was 23.2MB in the beginning and 23.1MB in the end (delta: 78.2kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory is still 21.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.96ms. Allocated memory is still 67.1MB. Free memory was 31.9MB in the beginning and 40.4MB in the end (delta: -8.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.11ms. Allocated memory is still 67.1MB. Free memory was 40.4MB in the beginning and 38.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.09ms. Allocated memory is still 67.1MB. Free memory was 38.3MB in the beginning and 41.9MB in the end (delta: -3.6MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * Referee took 247.28ms. Allocated memory was 67.1MB in the beginning and 90.2MB in the end (delta: 23.1MB). Free memory was 41.9MB in the beginning and 63.3MB in the end (delta: -21.3MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:29,547 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 Result: UNKNOWN