This is Ultimate 0.2.4-dev-5189fb6-m [2024-09-13 05:10:54,919 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 05:10:54,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 05:10:54,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 05:10:54,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 05:10:55,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 05:10:55,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 05:10:55,033 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 05:10:55,034 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 05:10:55,036 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 05:10:55,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 05:10:55,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 05:10:55,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 05:10:55,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 05:10:55,039 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 05:10:55,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 05:10:55,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 05:10:55,040 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 05:10:55,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 05:10:55,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 05:10:55,041 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 05:10:55,045 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 05:10:55,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 05:10:55,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 05:10:55,046 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 05:10:55,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 05:10:55,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 05:10:55,046 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 05:10:55,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 05:10:55,047 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 05:10:55,047 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 05:10:55,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 05:10:55,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 05:10:55,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:10:55,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 05:10:55,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 05:10:55,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 05:10:55,049 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 05:10:55,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 05:10:55,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 05:10:55,050 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 05:10:55,051 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 05:10:55,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 05:10:55,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 05:10:55,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 05:10:55,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 05:10:55,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 05:10:55,361 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 05:10:55,362 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 05:10:55,363 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gcd01-1.yml/witness-2.1.yml [2024-09-13 05:10:55,416 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 05:10:55,417 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 05:10:55,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive/gcd01-1.c [2024-09-13 05:10:56,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 05:10:57,073 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 05:10:57,074 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive/gcd01-1.c [2024-09-13 05:10:57,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5c82df91e/b6aebcab2d274c28b8253915add03390/FLAG19092f3c6 [2024-09-13 05:10:57,102 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5c82df91e/b6aebcab2d274c28b8253915add03390 [2024-09-13 05:10:57,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 05:10:57,106 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 05:10:57,107 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 05:10:57,107 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 05:10:57,113 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 05:10:57,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:10:55" (1/2) ... [2024-09-13 05:10:57,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eb650 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,115 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:10:55" (1/2) ... [2024-09-13 05:10:57,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6f67cb5d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:10:57" (2/2) ... [2024-09-13 05:10:57,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65eb650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:10:57" (2/2) ... [2024-09-13 05:10:57,123 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 05:10:57,127 INFO L1541 ArrayList]: Function contract at [L17]: requires null, ensures (((\old(y2) < 1) || (\old(y1) < 1)) || (0 < \result)) [2024-09-13 05:10:57,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 05:10:57,321 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/gcd01-1.c[1008,1021] [2024-09-13 05:10:57,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:10:57,339 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-13 05:10:57,382 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/gcd01-1.c[1008,1021] [2024-09-13 05:10:57,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 05:10:57,400 INFO L204 MainTranslator]: Completed translation [2024-09-13 05:10:57,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57 WrapperNode [2024-09-13 05:10:57,401 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 05:10:57,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 05:10:57,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 05:10:57,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 05:10:57,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,434 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure gcd is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-13 05:10:57,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,437 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,445 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 05:10:57,446 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 05:10:57,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 05:10:57,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 05:10:57,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (1/1) ... [2024-09-13 05:10:57,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 05:10:57,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 05:10:57,477 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) [2024-09-13 05:10:57,483 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 [2024-09-13 05:10:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 05:10:57,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 05:10:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 05:10:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2024-09-13 05:10:57,533 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 05:10:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 05:10:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 05:10:57,534 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 05:10:57,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-13 05:10:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-13 05:10:57,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 05:10:57,605 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 05:10:57,607 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 05:10:57,750 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 05:10:57,776 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 05:10:57,776 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 05:10:57,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:10:57 BoogieIcfgContainer [2024-09-13 05:10:57,777 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 05:10:57,778 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 05:10:57,778 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 05:10:57,779 INFO L274 PluginConnector]: Referee initialized [2024-09-13 05:10:57,779 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:10:55" (1/4) ... [2024-09-13 05:10:57,779 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ad6b1f3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,780 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 05:10:57" (2/4) ... [2024-09-13 05:10:57,780 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ad6b1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,780 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:10:57" (3/4) ... [2024-09-13 05:10:57,780 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ad6b1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,781 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:10:57" (4/4) ... [2024-09-13 05:10:57,783 INFO L79 RefereeObserver]: Analyzing ICFG gcd01-1.c [2024-09-13 05:10:57,787 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 05:10:57,788 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-13 05:10:57,788 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC gcdErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-13 05:10:57,788 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-13 05:10:57,837 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-13 05:10:57,838 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:10:57,838 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:10:57,839 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:10:57,844 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:10:57,846 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:10:57,873 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-13 05:10:57,874 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:10:57,874 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:10:57,875 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:10:57,875 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:10:57,876 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 05:10:57,901 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-13 05:10:57,916 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 12 edges [2024-09-13 05:10:57,916 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 05:10:57,916 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 05:10:57,916 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 05:10:57,916 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 05:10:57,917 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:10:57,952 INFO L101 BaseMinimizeStates]: Removed 22 edges and 8 locations by large block encoding [2024-09-13 05:10:57,953 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 05:10:57,953 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 05:10:57,953 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 05:10:57,953 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 05:10:57,962 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 05:10:57,971 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location gcdErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 05:10:57,974 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-13 05:10:57,975 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ad6b1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 05:10:57, skipping insertion in model container [2024-09-13 05:10:57,975 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-13 05:10:57,977 INFO L158 Benchmark]: Toolchain (without parser) took 870.41ms. Allocated memory is still 163.6MB. Free memory was 132.9MB in the beginning and 91.1MB in the end (delta: 41.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-09-13 05:10:57,978 INFO L158 Benchmark]: Witness Parser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:10:57,978 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 163.6MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 05:10:57,979 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 163.6MB. Free memory was 132.4MB in the beginning and 118.8MB in the end (delta: 13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-13 05:10:57,980 INFO L158 Benchmark]: Boogie Preprocessor took 43.57ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-13 05:10:57,980 INFO L158 Benchmark]: RCFGBuilder took 331.18ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 104.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 05:10:57,981 INFO L158 Benchmark]: Referee took 197.55ms. Allocated memory is still 163.6MB. Free memory was 104.4MB in the beginning and 91.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-13 05:10:57,983 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure main to check that a call to reach_error is unreachable at line 41. Annotation is valid for all loop-free paths from entry of procedure gcd to exit of procedure gcd. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.28ms. Allocated memory is still 163.6MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.42ms. Allocated memory is still 163.6MB. Free memory is still 128.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.98ms. Allocated memory is still 163.6MB. Free memory was 132.4MB in the beginning and 118.8MB in the end (delta: 13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.57ms. Allocated memory is still 163.6MB. Free memory was 118.8MB in the beginning and 116.7MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 331.18ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 104.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 197.55ms. Allocated memory is still 163.6MB. Free memory was 104.4MB in the beginning and 91.1MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 05:10:58,016 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...