./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/simple-recursive.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d 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-with-pointer/simple-recursive.c ../results/automizer-verification-files/SV-COMP24_unreach-call/simple-recursive.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-f1d7dc9-m [2024-09-20 13:29:38,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:29:38,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:29:38,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:29:38,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:29:39,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:29:39,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:29:39,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:29:39,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:29:39,037 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:29:39,038 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:29:39,039 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:29:39,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:29:39,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:29:39,041 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:29:39,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:29:39,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:29:39,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:29:39,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:29:39,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:29:39,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:29:39,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:29:39,046 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:29:39,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:29:39,047 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:29:39,047 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:29:39,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:29:39,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:29:39,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:29:39,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:29:39,048 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:29:39,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:29:39,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:29:39,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:39,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:29:39,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:29:39,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:29:39,050 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:29:39,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:29:39,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:29:39,051 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:29:39,052 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:29:39,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:29:39,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:29:39,306 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:29:39,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:29:39,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:29:39,335 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:29:39,335 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:29:39,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-09-20 13:29:40,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:29:40,935 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:29:40,936 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2024-09-20 13:29:40,941 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3155b6860/bed20841261f4d8dba2e10b03078c79f/FLAG85cb7d129 [2024-09-20 13:29:41,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3155b6860/bed20841261f4d8dba2e10b03078c79f [2024-09-20 13:29:41,323 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:29:41,324 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:29:41,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/simple-recursive.yml/witness-2.1.yml [2024-09-20 13:29:41,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:29:41,368 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:29:41,371 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:41,371 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:29:41,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:29:41,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:41" (1/2) ... [2024-09-20 13:29:41,379 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f749ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:41" (1/2) ... [2024-09-20 13:29:41,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@733a8de9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,381 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:41" (2/2) ... [2024-09-20 13:29:41,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18f749ee and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:41" (2/2) ... [2024-09-20 13:29:41,385 INFO L90 nessWitnessExtractor]: Witness did not contain any usable entries. [2024-09-20 13:29:41,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:29:41,543 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-with-pointer/simple-recursive.c[439,452] [2024-09-20 13:29:41,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:41,565 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 13:29:41,576 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-with-pointer/simple-recursive.c[439,452] [2024-09-20 13:29:41,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:41,590 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:29:41,591 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:41 WrapperNode [2024-09-20 13:29:41,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:41,592 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:29:41,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:29:41,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:29:41,603 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,603 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,609 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,621 INFO L175 MemorySlicer]: Split 8 memory accesses to 2 slices as follows [2, 6]. 75 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 2 writes are split as follows [0, 2]. [2024-09-20 13:29:41,621 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,622 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,625 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,630 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,631 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,631 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:29:41,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:29:41,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:29:41,635 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:29:41,635 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 20.09 01:29:41" (1/1) ... [2024-09-20 13:29:41,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:41,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:29:41,662 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) [2024-09-20 13:29:41,663 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 [2024-09-20 13:29:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:29:41,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:29:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:29:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2024-09-20 13:29:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-09-20 13:29:41,700 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:29:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:29:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:29:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:29:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:29:41,700 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:29:41,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-20 13:29:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:29:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:29:41,702 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:29:41,769 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:29:41,771 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:29:41,858 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:29:41,886 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:29:41,886 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:29:41,887 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:41 BoogieIcfgContainer [2024-09-20 13:29:41,887 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:29:41,888 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:29:41,888 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:29:41,889 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:29:41,889 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:29:41" (1/4) ... [2024-09-20 13:29:41,889 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b0eaa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,890 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:29:41" (2/4) ... [2024-09-20 13:29:41,890 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b0eaa22 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,890 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 20.09 01:29:41" (3/4) ... [2024-09-20 13:29:41,890 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b0eaa22 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:29:41, skipping insertion in model container [2024-09-20 13:29:41,891 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:41" (4/4) ... [2024-09-20 13:29:41,892 INFO L79 RefereeObserver]: Analyzing ICFG simple-recursive.c [2024-09-20 13:29:41,896 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:29:41,897 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC fooErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 4 edges. [2024-09-20 13:29:41,897 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to error location [2024-09-20 13:29:41,941 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:29:41,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:41,943 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:41,945 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:41,946 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:41,948 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:41,966 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:29:41,967 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:41,968 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:41,969 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:41,969 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:41,970 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:42,014 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:29:42,014 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2b0eaa22 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:29:42, skipping insertion in model container [2024-09-20 13:29:42,015 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:29:42,016 INFO L158 Benchmark]: Toolchain (without parser) took 647.25ms. Allocated memory is still 165.7MB. Free memory was 108.6MB in the beginning and 77.1MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-09-20 13:29:42,017 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:42,017 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:42,018 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.44ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 97.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:29:42,019 INFO L158 Benchmark]: Boogie Preprocessor took 40.71ms. Allocated memory is still 165.7MB. Free memory was 97.1MB in the beginning and 94.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:29:42,019 INFO L158 Benchmark]: RCFGBuilder took 253.16ms. Allocated memory is still 165.7MB. Free memory was 94.9MB in the beginning and 83.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:29:42,020 INFO L158 Benchmark]: Referee took 126.91ms. Allocated memory is still 165.7MB. Free memory was 83.0MB in the beginning and 77.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-20 13:29:42,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure foo to check that a call to reach_error is unreachable at line 18. One counterexample starts in \old(p)={2:3} and ends in \old(p)={2:3}, p={2:3}. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 110.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.44ms. Allocated memory is still 165.7MB. Free memory was 108.2MB in the beginning and 97.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.71ms. Allocated memory is still 165.7MB. Free memory was 97.1MB in the beginning and 94.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 253.16ms. Allocated memory is still 165.7MB. Free memory was 94.9MB in the beginning and 83.0MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 126.91ms. Allocated memory is still 165.7MB. Free memory was 83.0MB in the beginning and 77.1MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:29:42,057 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE