./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_10-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.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_10-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.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 20:54:17,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:17,631 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:17,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:17,639 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:17,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:17,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:17,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:17,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:17,674 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:17,676 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:17,676 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:17,677 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:17,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:17,678 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:17,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:17,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:17,680 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:17,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:17,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:17,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:17,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:17,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:17,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:17,695 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:17,695 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:17,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:17,695 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:17,696 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:17,697 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:17,697 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:17,697 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:17,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:17,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:17,699 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:17,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:17,699 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:17,699 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:17,699 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:17,700 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:17,700 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:17,700 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:17,700 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:17,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:17,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:17,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:17,951 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:17,951 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:17,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/fibo_10-2.yml/witness-2.1.yml [2024-09-11 20:54:17,996 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:17,996 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:17,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-09-11 20:54:19,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:19,593 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:19,594 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_10-2.c [2024-09-11 20:54:19,602 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/dc799948e/a5c29fe31b8e482097dc16a8b81555f6/FLAG33dcbdaab [2024-09-11 20:54:19,621 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/dc799948e/a5c29fe31b8e482097dc16a8b81555f6 [2024-09-11 20:54:19,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:19,622 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:19,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:19,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:19,632 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:19,633 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 08:54:17" (1/2) ... [2024-09-11 20:54:19,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e27cb59 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:19, skipping insertion in model container [2024-09-11 20:54:19,634 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 08:54:17" (1/2) ... [2024-09-11 20:54:19,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@96b3665 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:19, skipping insertion in model container [2024-09-11 20:54:19,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:19" (2/2) ... [2024-09-11 20:54:19,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e27cb59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19, skipping insertion in model container [2024-09-11 20:54:19,637 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:19" (2/2) ... [2024-09-11 20:54:19,647 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:19,647 INFO L1541 ArrayList]: Location invariant before [L28-L30] (10 <= x) [2024-09-11 20:54:19,648 INFO L1541 ArrayList]: Function contract at [L7]: requires null, ensures (((\result == 1) || (1 != \old(n))) && ((0 < \old(n)) || (\result == 0))) [2024-09-11 20:54:19,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:19,827 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_10-2.c[743,756] [2024-09-11 20:54:19,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:19,842 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-11 20:54:19,875 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_10-2.c[743,756] Start Parsing Local [2024-09-11 20:54:19,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:19,892 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:19,892 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19 WrapperNode [2024-09-11 20:54:19,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:19,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:19,894 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:19,894 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:19,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,924 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 20:54:19,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,928 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,936 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,940 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:19,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:19,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:19,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:19,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (1/1) ... [2024-09-11 20:54:19,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:19,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:19,975 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 20:54:19,977 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 20:54:20,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:20,025 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-09-11 20:54:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:54:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:20,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:54:20,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:54:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:54:20,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:20,099 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:20,102 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:20,268 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:20,269 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:20,298 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:20,298 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:20,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:20 BoogieIcfgContainer [2024-09-11 20:54:20,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:20,301 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:20,301 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:20,302 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:20,302 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 08:54:17" (1/4) ... [2024-09-11 20:54:20,303 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57006406 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:20, skipping insertion in model container [2024-09-11 20:54:20,303 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:19" (2/4) ... [2024-09-11 20:54:20,304 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57006406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:20, skipping insertion in model container [2024-09-11 20:54:20,305 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:19" (3/4) ... [2024-09-11 20:54:20,305 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57006406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:20, skipping insertion in model container [2024-09-11 20:54:20,305 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:20" (4/4) ... [2024-09-11 20:54:20,306 INFO L79 RefereeObserver]: Analyzing ICFG fibo_10-2.c [2024-09-11 20:54:20,310 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:20,311 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fiboErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:54:20,311 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:54:20,311 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:20,312 INFO L130 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:20,361 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:54:20,361 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:20,362 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:20,365 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:20,366 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:20,369 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,415 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:54:20,416 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,417 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:20,417 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:20,417 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:20,429 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:20,454 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location fiboErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:20,464 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:20,466 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:20,466 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:20,466 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:20,467 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:20,467 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,473 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:20,473 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,474 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:20,474 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:20,474 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:20,474 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:20,477 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:20,486 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:20,487 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:20,487 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:20,487 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:20,487 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:20,488 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,496 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:20,497 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:20,497 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:20,497 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:20,497 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:20,498 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:20,511 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:54:20,511 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@57006406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:20, skipping insertion in model container [2024-09-11 20:54:20,511 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:20,513 INFO L158 Benchmark]: Toolchain (without parser) took 890.12ms. Allocated memory is still 165.7MB. Free memory was 112.0MB in the beginning and 69.8MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:20,514 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:20,514 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 165.7MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:20,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.31ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 98.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:54:20,515 INFO L158 Benchmark]: Boogie Preprocessor took 47.51ms. Allocated memory is still 165.7MB. Free memory was 97.9MB in the beginning and 96.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:20,516 INFO L158 Benchmark]: RCFGBuilder took 358.25ms. Allocated memory is still 165.7MB. Free memory was 96.1MB in the beginning and 83.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:20,516 INFO L158 Benchmark]: Referee took 210.64ms. Allocated memory is still 165.7MB. Free memory was 83.0MB in the beginning and 70.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:20,519 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure main to check that a call to reach_error is unreachable at line 29. One counterexample starts in and ends in result=0, x=0. 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: * Witness Parser took 0.20ms. Allocated memory is still 165.7MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 165.7MB. Free memory is still 134.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.31ms. Allocated memory is still 165.7MB. Free memory was 111.7MB in the beginning and 98.2MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.51ms. Allocated memory is still 165.7MB. Free memory was 97.9MB in the beginning and 96.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 358.25ms. Allocated memory is still 165.7MB. Free memory was 96.1MB in the beginning and 83.0MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 210.64ms. Allocated memory is still 165.7MB. Free memory was 83.0MB in the beginning and 70.1MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:20,548 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE