./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/hh2012-ex1b.i --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/hh2012-ex1b.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 04d6fb36 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/loop-lit/hh2012-ex1b.i ../results/automizer-verification-files/SV-COMP24_unreach-call/hh2012-ex1b.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-04d6fb3-m [2024-09-15 20:05:43,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-15 20:05:43,234 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-15 20:05:43,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-15 20:05:43,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-15 20:05:43,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-15 20:05:43,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-15 20:05:43,277 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-15 20:05:43,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-15 20:05:43,278 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-15 20:05:43,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-15 20:05:43,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-15 20:05:43,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-15 20:05:43,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-15 20:05:43,280 INFO L153 SettingsManager]: * Use SBE=true [2024-09-15 20:05:43,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-15 20:05:43,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-15 20:05:43,281 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-15 20:05:43,281 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-15 20:05:43,281 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-15 20:05:43,284 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-15 20:05:43,287 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-15 20:05:43,287 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-15 20:05:43,288 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-15 20:05:43,288 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-15 20:05:43,288 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-15 20:05:43,288 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-15 20:05:43,289 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-15 20:05:43,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-15 20:05:43,289 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-15 20:05:43,289 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-15 20:05:43,290 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-15 20:05:43,290 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-15 20:05:43,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:43,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-15 20:05:43,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-15 20:05:43,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-15 20:05:43,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-15 20:05:43,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-15 20:05:43,292 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-15 20:05:43,292 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-15 20:05:43,293 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-15 20:05:43,293 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-15 20:05:43,293 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-15 20:05:43,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-15 20:05:43,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-15 20:05:43,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-15 20:05:43,637 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-15 20:05:43,638 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-15 20:05:43,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/hh2012-ex1b.yml/witness-2.1.yml [2024-09-15 20:05:43,698 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-15 20:05:43,698 INFO L274 PluginConnector]: CDTParser initialized [2024-09-15 20:05:43,699 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2024-09-15 20:05:45,138 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-15 20:05:45,358 INFO L384 CDTParser]: Found 1 translation units. [2024-09-15 20:05:45,359 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/hh2012-ex1b.i [2024-09-15 20:05:45,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/9ae560834/ad1fece3547744ea857ed24d1459347a/FLAGdf56bc72a [2024-09-15 20:05:45,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/9ae560834/ad1fece3547744ea857ed24d1459347a [2024-09-15 20:05:45,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-15 20:05:45,731 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-15 20:05:45,732 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:45,733 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-15 20:05:45,737 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-15 20:05:45,737 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:43" (1/2) ... [2024-09-15 20:05:45,738 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73501bab and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:45, skipping insertion in model container [2024-09-15 20:05:45,738 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:43" (1/2) ... [2024-09-15 20:05:45,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@40b93fb6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:05:45, skipping insertion in model container [2024-09-15 20:05:45,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:45" (2/2) ... [2024-09-15 20:05:45,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73501bab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:45, skipping insertion in model container [2024-09-15 20:05:45,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:05:45" (2/2) ... [2024-09-15 20:05:45,760 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-15 20:05:45,762 INFO L1541 ArrayList]: Loop invariant at [L18-L21] ((i <= 99) && (j <= 100)) [2024-09-15 20:05:45,765 INFO L1541 ArrayList]: Loop invariant at [L16-L25] (i < 101) [2024-09-15 20:05:45,765 INFO L1541 ArrayList]: Function contract at [L13]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-15 20:05:45,781 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-15 20:05:45,943 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/loop-lit/hh2012-ex1b.i[800,813] [2024-09-15 20:05:45,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:45,973 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-15 20:05:46,014 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/loop-lit/hh2012-ex1b.i[800,813] Start Parsing Local Start Parsing Local [2024-09-15 20:05:46,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-15 20:05:46,037 INFO L204 MainTranslator]: Completed translation [2024-09-15 20:05:46,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46 WrapperNode [2024-09-15 20:05:46,037 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-15 20:05:46,038 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-15 20:05:46,038 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-15 20:05:46,038 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-15 20:05:46,047 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,061 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-15 20:05:46,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,068 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,070 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-15 20:05:46,071 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-15 20:05:46,071 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-15 20:05:46,071 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-15 20:05:46,072 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (1/1) ... [2024-09-15 20:05:46,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-15 20:05:46,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-15 20:05:46,108 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) [2024-09-15 20:05:46,110 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 [2024-09-15 20:05:46,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-15 20:05:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-15 20:05:46,155 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-15 20:05:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-15 20:05:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-15 20:05:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-15 20:05:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-15 20:05:46,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-15 20:05:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-15 20:05:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-15 20:05:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-15 20:05:46,159 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-15 20:05:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-15 20:05:46,236 INFO L242 CfgBuilder]: Building ICFG [2024-09-15 20:05:46,239 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-15 20:05:46,361 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-15 20:05:46,374 INFO L291 CfgBuilder]: Performing block encoding [2024-09-15 20:05:46,394 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-15 20:05:46,397 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-15 20:05:46,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:46 BoogieIcfgContainer [2024-09-15 20:05:46,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-15 20:05:46,398 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-15 20:05:46,398 INFO L270 PluginConnector]: Initializing Referee... [2024-09-15 20:05:46,399 INFO L274 PluginConnector]: Referee initialized [2024-09-15 20:05:46,399 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:05:43" (1/4) ... [2024-09-15 20:05:46,399 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ec26ffc and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.09 08:05:46, skipping insertion in model container [2024-09-15 20:05:46,400 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.09 08:05:45" (2/4) ... [2024-09-15 20:05:46,400 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ec26ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:46, skipping insertion in model container [2024-09-15 20:05:46,400 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:05:46" (3/4) ... [2024-09-15 20:05:46,401 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ec26ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.09 08:05:46, skipping insertion in model container [2024-09-15 20:05:46,401 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:05:46" (4/4) ... [2024-09-15 20:05:46,402 INFO L79 RefereeObserver]: Analyzing ICFG hh2012-ex1b.i [2024-09-15 20:05:46,406 INFO L112 InvariantChecker]: Found 2 loops. [2024-09-15 20:05:46,407 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-1 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-15 20:05:46,407 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-15 20:05:46,407 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-15 20:05:46,408 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-1 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-15 20:05:46,408 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-15 20:05:46,408 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-1 to LOOP_INVARIANT_ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-15 20:05:46,409 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-1 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-15 20:05:46,409 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-15 20:05:46,410 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-15 20:05:46,410 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-1 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-15 20:05:46,410 INFO L130 InvariantChecker]: Will check 4 loop-free subgraphs from loop head to error location, 3 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location [2024-09-15 20:05:46,458 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-15 20:05:46,461 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,461 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,462 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,463 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,464 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,476 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-15 20:05:46,477 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,477 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,477 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,477 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,478 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,497 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-1 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-15 20:05:46,511 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-15 20:05:46,511 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,512 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,512 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,512 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,512 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,517 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-15 20:05:46,517 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,517 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,517 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,517 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,522 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,524 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr5REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-15 20:05:46,536 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-15 20:05:46,536 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,536 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,537 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,537 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,537 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,538 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-15 20:05:46,538 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,538 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,539 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,539 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,539 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,543 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-15 20:05:46,561 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-15 20:05:46,561 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,562 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,562 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,562 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,562 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,577 INFO L101 BaseMinimizeStates]: Removed 18 edges and 6 locations by large block encoding [2024-09-15 20:05:46,577 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,577 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,577 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,578 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,581 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,584 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-1 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-15 20:05:46,595 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-15 20:05:46,595 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,595 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,595 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,596 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,596 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,598 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-15 20:05:46,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,599 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,600 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,600 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,600 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,607 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-15 20:05:46,617 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-15 20:05:46,617 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,618 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,618 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,618 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,618 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,622 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-15 20:05:46,626 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,627 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,630 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,630 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,630 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,633 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-1 to loop head mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-15 20:05:46,640 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-15 20:05:46,640 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,640 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,641 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,641 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,641 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,650 INFO L101 BaseMinimizeStates]: Removed 12 edges and 4 locations by large block encoding [2024-09-15 20:05:46,650 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,650 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,651 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,651 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,654 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,658 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-1 to error location mainErr4REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-15 20:05:46,666 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-15 20:05:46,667 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,667 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,667 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,667 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,667 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,672 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-15 20:05:46,672 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,672 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,673 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,673 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,673 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,675 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-15 20:05:46,681 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-15 20:05:46,682 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,682 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,682 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,683 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,683 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,684 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-15 20:05:46,684 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,684 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,685 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,685 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,685 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,687 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-15 20:05:46,698 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-15 20:05:46,698 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-15 20:05:46,698 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-15 20:05:46,699 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-15 20:05:46,699 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-15 20:05:46,699 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,701 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-15 20:05:46,701 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-15 20:05:46,701 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-15 20:05:46,705 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-15 20:05:46,705 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-15 20:05:46,707 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-15 20:05:46,708 INFO L514 InvariantChecker]: The annotation(s) from loop head L20-1 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-15 20:05:46,712 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-15 20:05:46,716 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1ec26ffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 15.09 08:05:46, skipping insertion in model container [2024-09-15 20:05:46,716 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-15 20:05:46,717 INFO L158 Benchmark]: Toolchain (without parser) took 985.56ms. Allocated memory is still 184.5MB. Free memory was 100.6MB in the beginning and 123.7MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:46,719 INFO L158 Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:46,719 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 184.5MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:46,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.99ms. Allocated memory is still 184.5MB. Free memory was 100.4MB in the beginning and 147.4MB in the end (delta: -47.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-09-15 20:05:46,721 INFO L158 Benchmark]: Boogie Preprocessor took 32.05ms. Allocated memory is still 184.5MB. Free memory was 147.4MB in the beginning and 146.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-15 20:05:46,721 INFO L158 Benchmark]: RCFGBuilder took 326.95ms. Allocated memory is still 184.5MB. Free memory was 145.3MB in the beginning and 147.9MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-15 20:05:46,722 INFO L158 Benchmark]: Referee took 317.95ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 123.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-15 20:05:46,725 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 loop head at line 16 to loop head at line 18. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 24. Annotation is valid for all loop-free paths from loop head at line 16 to check that procedure precondition always holds at line 16. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 18. Annotation is valid for all loop-free paths from loop head at line 18 to check that procedure precondition always holds at line 20. Annotation is valid for all loop-free paths from loop head at line 18 to loop head at line 18. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 16. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. Annotation is valid for all loop-free paths from loop head at line 18 to loop head at line 16. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.20ms. Allocated memory is still 184.5MB. Free memory is still 149.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.32ms. Allocated memory is still 184.5MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.99ms. Allocated memory is still 184.5MB. Free memory was 100.4MB in the beginning and 147.4MB in the end (delta: -47.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.05ms. Allocated memory is still 184.5MB. Free memory was 147.4MB in the beginning and 146.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 326.95ms. Allocated memory is still 184.5MB. Free memory was 145.3MB in the beginning and 147.9MB in the end (delta: -2.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Referee took 317.95ms. Allocated memory is still 184.5MB. Free memory was 147.9MB in the beginning and 123.7MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-15 20:05:46,753 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE