./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/Ackermann03.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/Ackermann03.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursive/Ackermann03.c ../results/automizer-verification-files/SV-COMP24_unreach-call/Ackermann03.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:49:25,832 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:49:25,893 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:49:25,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:49:25,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:49:25,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:49:25,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:49:25,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:49:25,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:49:25,941 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:49:25,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:49:25,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:49:25,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:49:25,942 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:49:25,942 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:49:25,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:49:25,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:49:25,943 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:49:25,943 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:49:25,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:49:25,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:49:25,944 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:49:25,944 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:49:25,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:49:25,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:49:25,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:49:25,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:49:25,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:49:25,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:49:25,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:49:25,946 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:49:25,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:49:25,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:49:25,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:25,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:49:25,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:49:25,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:49:25,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:49:25,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:49:25,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:49:25,948 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:49:25,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:49:25,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:49:25,949 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:49:26,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:49:26,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:49:26,173 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:49:26,174 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:49:26,178 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:49:26,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/Ackermann03.yml/witness-2.1.yml [2024-09-25 11:49:26,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:49:26,233 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:49:26,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive/Ackermann03.c [2024-09-25 11:49:27,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:49:27,612 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:49:27,613 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Ackermann03.c [2024-09-25 11:49:27,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/14ae106c7/5d4ca2ce3e394a0daca5a74646fd66d2/FLAG6af46f37c [2024-09-25 11:49:28,026 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/14ae106c7/5d4ca2ce3e394a0daca5a74646fd66d2 [2024-09-25 11:49:28,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:49:28,028 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:49:28,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:28,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:49:28,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:49:28,035 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:26" (1/2) ... [2024-09-25 11:49:28,036 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b713850 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,036 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:26" (1/2) ... [2024-09-25 11:49:28,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2a1556e9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:28" (2/2) ... [2024-09-25 11:49:28,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b713850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:49:28" (2/2) ... [2024-09-25 11:49:28,043 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:49:28,043 INFO L1541 ArrayList]: Function contract at [L16]: requires null, ensures (((((((((((((((((\result == 5) && (n == 3)) || (((\result == 3) && (n == 1)) && (m == 1))) || (m == 0)) || (((2 <= m) && (3 <= n)) && (5 <= \result))) || (((n == 0) && (\result == 2)) && (m == 1))) || (((2 <= m) && (2 <= n)) && (\result == 7))) || ((\result == 5) && (n == 1))) || (((\result == 7) && (5 <= n)) && (m == 1))) || (((n == 0) && (2 <= m)) && (\result == 3))) || ((\result == 6) && (n == 4))) || (((5 <= \result) && (6 <= n)) && (m == 1))) || (((\result == 4) && (n == 2)) && (m == 1))) || ((3 <= m) && (3 <= \result))) && ((0 < m) || (\result == ((long long) n + 1)))) && (((((\result == 3) && (m == 1)) || (1 < m)) || (\result == 2)) || (n != 1))) && (((m == 0) || (n == 0)) || (0 < n))) [2024-09-25 11:49:28,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:49:28,195 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Ackermann03.c[1168,1181] [2024-09-25 11:49:28,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:28,214 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:49:28,249 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/Ackermann03.c[1168,1181] [2024-09-25 11:49:28,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:49:28,262 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:49:28,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28 WrapperNode [2024-09-25 11:49:28,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:49:28,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:49:28,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:49:28,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:49:28,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,297 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure ackermann is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:49:28,297 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,307 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,309 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:49:28,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:49:28,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:49:28,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:49:28,310 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (1/1) ... [2024-09-25 11:49:28,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:49:28,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:49:28,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 11:49:28,348 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 11:49:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:49:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:49:28,386 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:49:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2024-09-25 11:49:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:49:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:49:28,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:49:28,443 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:49:28,447 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:49:28,676 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:49:28,690 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:49:28,691 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:49:28,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:28 BoogieIcfgContainer [2024-09-25 11:49:28,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:49:28,692 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:49:28,692 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:49:28,693 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:49:28,693 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:49:26" (1/4) ... [2024-09-25 11:49:28,694 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7c9d5f81 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,694 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:49:28" (2/4) ... [2024-09-25 11:49:28,694 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7c9d5f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,694 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:49:28" (3/4) ... [2024-09-25 11:49:28,694 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7c9d5f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,694 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:49:28" (4/4) ... [2024-09-25 11:49:28,695 INFO L79 RefereeObserver]: Analyzing ICFG Ackermann03.c [2024-09-25 11:49:28,698 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:49:28,699 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-25 11:49:28,699 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ackermannErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-25 11:49:28,699 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 11:49:28,741 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-25 11:49:28,742 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:28,742 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:28,743 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:28,744 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:28,745 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:28,780 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-25 11:49:28,781 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:28,781 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:28,781 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:28,782 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:28,782 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:28,806 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-25 11:49:28,827 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 12 edges [2024-09-25 11:49:28,829 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:49:28,830 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:49:28,830 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:49:28,830 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:49:28,830 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:28,877 INFO L101 BaseMinimizeStates]: Removed 22 edges and 9 locations by large block encoding [2024-09-25 11:49:28,878 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:49:28,878 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:49:28,878 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:49:28,878 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:49:28,892 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 11:49:28,901 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ackermannErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-25 11:49:28,904 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-25 11:49:28,905 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7c9d5f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 25.09 11:49:28, skipping insertion in model container [2024-09-25 11:49:28,905 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-25 11:49:28,907 INFO L158 Benchmark]: Toolchain (without parser) took 877.60ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 72.8MB in the beginning and 131.3MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:28,908 INFO L158 Benchmark]: Witness Parser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:28,908 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:49:28,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.00ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 59.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:49:28,909 INFO L158 Benchmark]: Boogie Preprocessor took 45.57ms. Allocated memory is still 142.6MB. Free memory was 59.7MB in the beginning and 57.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:49:28,910 INFO L158 Benchmark]: RCFGBuilder took 382.34ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 57.7MB in the beginning and 158.5MB in the end (delta: -100.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2024-09-25 11:49:28,910 INFO L158 Benchmark]: Referee took 213.08ms. Allocated memory is still 195.0MB. Free memory was 158.5MB in the beginning and 131.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-25 11:49:28,912 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure main to check that a call to reach_error is unreachable at line 45. Annotation is valid for all loop-free paths from entry of procedure ackermann to exit of procedure ackermann. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.11ms. Allocated memory is still 142.6MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.13ms. Allocated memory is still 142.6MB. Free memory is still 117.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.00ms. Allocated memory is still 142.6MB. Free memory was 72.8MB in the beginning and 59.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.57ms. Allocated memory is still 142.6MB. Free memory was 59.7MB in the beginning and 57.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.34ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 57.7MB in the beginning and 158.5MB in the end (delta: -100.8MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Referee took 213.08ms. Allocated memory is still 195.0MB. Free memory was 158.5MB in the beginning and 131.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-25 11:49:28,936 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: TRUE