./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec-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/afterrec-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec-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 20:54:16,089 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:16,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:54:16,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:16,146 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:16,203 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:16,203 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:16,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:16,204 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:16,204 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:16,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:16,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:16,219 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:16,220 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:16,220 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:16,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:16,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:16,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:16,221 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:54:16,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:16,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:16,225 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:16,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:16,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:16,226 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:16,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:54:16,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:54:16,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:16,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:16,228 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:16,229 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:16,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:16,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:16,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:16,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:16,464 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:16,465 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:16,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-09-11 20:54:17,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:17,974 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:17,975 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-09-11 20:54:17,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/e8eb64a87/d81ce9ef9c634a149ca664e88161d3fb/FLAG26acecdc8 [2024-09-11 20:54:17,995 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/e8eb64a87/d81ce9ef9c634a149ca664e88161d3fb [2024-09-11 20:54:17,998 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:17,998 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:18,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec-2.yml/witness-2.1.yml [2024-09-11 20:54:18,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:18,046 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:18,049 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:18,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:18,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:18,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:17" (1/2) ... [2024-09-11 20:54:18,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f0a288 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:17" (1/2) ... [2024-09-11 20:54:18,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46f7d471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,057 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 08:54:18" (2/2) ... [2024-09-11 20:54:18,057 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f0a288 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,058 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 08:54:18" (2/2) ... [2024-09-11 20:54:18,066 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:18,067 INFO L1541 ArrayList]: Function contract at [L5]: requires (\old(n) <= 2), ensures (\old(n) <= 2) [2024-09-11 20:54:18,092 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:18,255 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/afterrec-2.c[318,331] [2024-09-11 20:54:18,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:18,270 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:54:18,303 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/afterrec-2.c[318,331] [2024-09-11 20:54:18,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:18,315 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:18,316 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:18 WrapperNode [2024-09-11 20:54:18,316 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:18,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:18,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:18,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:18,327 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,327 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,331 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,345 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure f is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:54:18,345 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,346 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,348 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,349 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,350 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,351 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:18,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:18,357 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:18,357 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:18,358 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 08:54:18" (1/1) ... [2024-09-11 20:54:18,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:18,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:18,383 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 20:54:18,388 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 20:54:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-09-11 20:54:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:18,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:18,461 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:54:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:54:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:54:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:18,517 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:18,518 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:18,562 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:54:18,600 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:18,600 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:18,615 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:18,615 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:18,616 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:18 BoogieIcfgContainer [2024-09-11 20:54:18,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:18,616 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:18,617 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:18,617 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:18,617 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:17" (1/4) ... [2024-09-11 20:54:18,618 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3cf031bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,618 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 08:54:18" (2/4) ... [2024-09-11 20:54:18,618 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3cf031bc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,618 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 08:54:18" (3/4) ... [2024-09-11 20:54:18,618 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3cf031bc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,619 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 08:54:18" (4/4) ... [2024-09-11 20:54:18,620 INFO L79 RefereeObserver]: Analyzing ICFG afterrec-2.c [2024-09-11 20:54:18,623 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:18,624 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:18,624 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:54:18,624 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 1 edges. [2024-09-11 20:54:18,624 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 4 edges. [2024-09-11 20:54:18,624 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:18,657 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:54:18,658 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,659 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,660 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,661 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,663 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,680 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-11 20:54:18,681 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,681 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,681 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,682 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,687 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,707 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:18,716 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:54:18,717 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,717 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,717 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,717 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,717 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,723 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:54:18,725 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,725 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,725 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,725 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,725 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,727 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:54:18,733 INFO L314 BlockEncoder]: Initial Icfg 2 locations, 1 edges [2024-09-11 20:54:18,733 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,733 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,734 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,734 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,734 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,734 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,734 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,734 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,734 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,737 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:54:18,745 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:18,746 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:18,747 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:18,747 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:18,748 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:18,748 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,754 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:18,756 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:18,756 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:18,756 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:18,756 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:18,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:18,759 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:18,762 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:18,765 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@3cf031bc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:18, skipping insertion in model container [2024-09-11 20:54:18,765 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:18,767 INFO L158 Benchmark]: Toolchain (without parser) took 720.22ms. Allocated memory is still 199.2MB. Free memory was 131.4MB in the beginning and 153.2MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:18,771 INFO L158 Benchmark]: CDTParser took 0.52ms. Allocated memory is still 109.1MB. Free memory was 77.2MB in the beginning and 77.1MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:18,772 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 199.2MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:18,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.52ms. Allocated memory is still 199.2MB. Free memory was 131.3MB in the beginning and 118.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,772 INFO L158 Benchmark]: Boogie Preprocessor took 35.72ms. Allocated memory is still 199.2MB. Free memory was 118.9MB in the beginning and 117.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,773 INFO L158 Benchmark]: RCFGBuilder took 263.13ms. Allocated memory is still 199.2MB. Free memory was 117.0MB in the beginning and 162.9MB in the end (delta: -45.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,773 INFO L158 Benchmark]: Referee took 149.01ms. Allocated memory is still 199.2MB. Free memory was 162.9MB in the beginning and 153.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:18,775 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 f to check that a call to reach_error is unreachable at line 9. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 12. Annotation is valid for all loop-free paths from entry of procedure f to exit of procedure f. Annotation is valid for all loop-free paths from entry of procedure f to check that procedure precondition always holds at line 8. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52ms. Allocated memory is still 109.1MB. Free memory was 77.2MB in the beginning and 77.1MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.22ms. Allocated memory is still 199.2MB. Free memory is still 133.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.52ms. Allocated memory is still 199.2MB. Free memory was 131.3MB in the beginning and 118.9MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.72ms. Allocated memory is still 199.2MB. Free memory was 118.9MB in the beginning and 117.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.13ms. Allocated memory is still 199.2MB. Free memory was 117.0MB in the beginning and 162.9MB in the end (delta: -45.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Referee took 149.01ms. Allocated memory is still 199.2MB. Free memory was 162.9MB in the beginning and 153.2MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:18,806 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/afterrec-2.c ../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec-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 20:54:20,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:54:21,041 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:54:21,049 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:54:21,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:54:21,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:54:21,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:54:21,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:54:21,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:54:21,081 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:54:21,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:54:21,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:54:21,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:54:21,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:54:21,083 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:54:21,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:54:21,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:54:21,084 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:54:21,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:54:21,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:54:21,085 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:54:21,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:54:21,090 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:54:21,091 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:54:21,091 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:54:21,091 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:54:21,091 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:54:21,092 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:54:21,092 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:54:21,092 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:54:21,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:54:21,093 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:54:21,093 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:54:21,093 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:54:21,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:21,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:54:21,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:54:21,094 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:54:21,096 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:54:21,096 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:54:21,096 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:54:21,097 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:54:21,097 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:54:21,097 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:54:21,097 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:54:21,098 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:54:21,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:54:21,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:54:21,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:54:21,404 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:54:21,405 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:54:21,406 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-09-11 20:54:22,911 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:54:23,084 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:54:23,084 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec-2.c [2024-09-11 20:54:23,092 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/13ae97850/0121cd26b6784827aa2e8fce13f3e7a3/FLAG85f5aceb5 [2024-09-11 20:54:23,465 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/13ae97850/0121cd26b6784827aa2e8fce13f3e7a3 [2024-09-11 20:54:23,467 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:54:23,468 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:54:23,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec-2.yml/witness-2.1.yml [2024-09-11 20:54:23,516 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:54:23,517 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:54:23,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:23,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:54:23,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:54:23,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:23" (1/2) ... [2024-09-11 20:54:23,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e68d685 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:23" (1/2) ... [2024-09-11 20:54:23,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39920828 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,527 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 08:54:23" (2/2) ... [2024-09-11 20:54:23,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e68d685 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:54:23, skipping insertion in model container [2024-09-11 20:54:23,527 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 08:54:23" (2/2) ... [2024-09-11 20:54:23,534 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:54:23,536 INFO L1541 ArrayList]: Function contract at [L5]: requires (\old(n) <= 2), ensures (\old(n) <= 2) [2024-09-11 20:54:23,548 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:54:23,684 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/afterrec-2.c[318,331] [2024-09-11 20:54:23,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:23,706 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:54:23,738 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/afterrec-2.c[318,331] [2024-09-11 20:54:23,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:54:23,756 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:54:23,757 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 20:54:23,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:54:23,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:54:23,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:54:23,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:54:23,769 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 20:54:23,770 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 20:54:23,776 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 20:54:23,784 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure f is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-11 20:54:23,785 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 20:54:23,785 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 20:54:23,790 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 20:54:23,791 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 20:54:23,795 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 20:54:23,796 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 20:54:23,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:54:23,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:54:23,798 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:54:23,798 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:54:23,799 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 20:54:23,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:54:23,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:54:23,829 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 20:54:23,834 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 20:54:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:54:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:54:23,887 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:54:23,888 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-09-11 20:54:23,888 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-09-11 20:54:23,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:54:23,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:54:23,975 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:54:23,977 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:54:24,039 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:54:24,097 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-09-11 20:54:24,098 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:54:24,127 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:54:24,127 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-11 20:54:24,127 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:24 BoogieIcfgContainer [2024-09-11 20:54:24,127 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:54:24,128 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:54:24,128 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:54:24,129 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:54:24,129 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:54:23" (1/4) ... [2024-09-11 20:54:24,129 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@73cb0833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:54:24, skipping insertion in model container [2024-09-11 20:54:24,129 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 08:54:23" (2/4) ... [2024-09-11 20:54:24,130 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@73cb0833 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:24, skipping insertion in model container [2024-09-11 20:54:24,130 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 20:54:24,130 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@73cb0833 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:54:24, skipping insertion in model container [2024-09-11 20:54:24,130 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 08:54:24" (4/4) ... [2024-09-11 20:54:24,131 INFO L79 RefereeObserver]: Analyzing ICFG afterrec-2.c [2024-09-11 20:54:24,137 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-11 20:54:24,138 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-11 20:54:24,138 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-11 20:54:24,138 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 1 edges. [2024-09-11 20:54:24,138 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 4 edges. [2024-09-11 20:54:24,139 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-11 20:54:24,185 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-11 20:54:24,186 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:24,186 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:24,187 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:24,188 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:24,190 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,210 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-11 20:54:24,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,215 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:24,215 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:24,215 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:24,218 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:24,233 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:24,246 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:54:24,246 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:24,246 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:24,247 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:24,247 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:24,247 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,254 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:54:24,255 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,255 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:24,255 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:24,255 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:24,255 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:24,259 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:54:24,268 INFO L314 BlockEncoder]: Initial Icfg 2 locations, 1 edges [2024-09-11 20:54:24,269 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:24,269 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:24,269 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:24,269 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:24,270 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,270 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:24,270 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:24,270 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:24,270 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:24,272 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:54:24,279 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:54:24,280 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:24,280 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:24,280 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:24,280 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:24,280 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,284 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:54:24,284 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:24,284 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:24,285 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:24,285 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:24,285 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:24,287 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:24,289 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:54:24,289 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@73cb0833 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:24, skipping insertion in model container [2024-09-11 20:54:24,290 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:24,291 INFO L158 Benchmark]: Toolchain (without parser) took 773.82ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.7MB in the beginning and 67.1MB in the end (delta: -17.4MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2024-09-11 20:54:24,292 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 73.4MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:24,292 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 73.4MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:24,293 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.84ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 36.7MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:54:24,293 INFO L158 Benchmark]: Boogie Preprocessor took 38.86ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:24,294 INFO L158 Benchmark]: RCFGBuilder took 329.62ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 34.8MB in the beginning and 77.6MB in the end (delta: -42.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-11 20:54:24,294 INFO L158 Benchmark]: Referee took 161.76ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 67.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:54:24,297 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 f to check that procedure precondition always holds at line 8. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 12. Annotation is valid for all loop-free paths from entry of procedure f to check that a call to reach_error is unreachable at line 9. Annotation is valid for all loop-free paths from entry of procedure f to exit of procedure f. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 73.4MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 73.4MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.84ms. Allocated memory is still 73.4MB. Free memory was 49.5MB in the beginning and 36.7MB in the end (delta: 12.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.86ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 34.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.62ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 34.8MB in the beginning and 77.6MB in the end (delta: -42.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 161.76ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 67.1MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:24,331 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN