This is Ultimate 0.2.4-dev-1d5fa63-m [2024-09-13 10:11:12,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-13 10:11:12,529 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-13 10:11:12,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-13 10:11:12,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-13 10:11:12,550 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-13 10:11:12,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-13 10:11:12,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-13 10:11:12,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-13 10:11:12,551 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-13 10:11:12,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-13 10:11:12,551 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-13 10:11:12,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-13 10:11:12,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-13 10:11:12,552 INFO L153 SettingsManager]: * Use SBE=true [2024-09-13 10:11:12,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-13 10:11:12,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-13 10:11:12,553 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-13 10:11:12,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-13 10:11:12,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-13 10:11:12,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-13 10:11:12,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-13 10:11:12,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-13 10:11:12,557 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-13 10:11:12,557 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-13 10:11:12,557 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-13 10:11:12,558 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-13 10:11:12,558 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-13 10:11:12,558 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-13 10:11:12,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-13 10:11:12,558 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-13 10:11:12,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-13 10:11:12,559 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-13 10:11:12,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:11:12,559 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-13 10:11:12,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-13 10:11:12,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-13 10:11:12,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-13 10:11:12,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-13 10:11:12,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-13 10:11:12,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-13 10:11:12,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-13 10:11:12,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-13 10:11:12,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-13 10:11:12,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-13 10:11:12,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-13 10:11:12,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-13 10:11:12,779 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-13 10:11:12,780 INFO L274 PluginConnector]: CDTParser initialized [2024-09-13 10:11:12,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2024-09-13 10:11:13,993 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-13 10:11:14,136 INFO L384 CDTParser]: Found 1 translation units. [2024-09-13 10:11:14,137 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c [2024-09-13 10:11:14,142 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ddc662de2/62356bb4869d4db9bd4c7d1a7c7cab49/FLAG8c28691fc [2024-09-13 10:11:14,155 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ddc662de2/62356bb4869d4db9bd4c7d1a7c7cab49 [2024-09-13 10:11:14,157 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-13 10:11:14,158 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-13 10:11:14,159 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/afterrec_2calls-2.yml/witness-2.1.yml [2024-09-13 10:11:14,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-13 10:11:14,198 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-13 10:11:14,201 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-13 10:11:14,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-13 10:11:14,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-13 10:11:14,210 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:11:14" (1/2) ... [2024-09-13 10:11:14,211 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd8152e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:11:14" (1/2) ... [2024-09-13 10:11:14,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1bd929c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,212 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 10:11:14" (2/2) ... [2024-09-13 10:11:14,213 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dd8152e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,213 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 10:11:14" (2/2) ... [2024-09-13 10:11:14,219 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-13 10:11:14,219 INFO L1541 ArrayList]: Function contract at [L8]: requires (\old(n) == 2), ensures (\old(n) == 2) [2024-09-13 10:11:14,219 INFO L1541 ArrayList]: Function contract at [L15]: requires 0, ensures 0 [2024-09-13 10:11:14,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-13 10:11:14,342 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] [2024-09-13 10:11:14,352 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2024-09-13 10:11:14,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:11:14,364 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-13 10:11:14,395 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[354,367] Start Parsing Global Start Parsing Global [2024-09-13 10:11:14,397 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/afterrec_2calls-2.c[442,455] [2024-09-13 10:11:14,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-13 10:11:14,412 INFO L204 MainTranslator]: Completed translation [2024-09-13 10:11:14,413 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:11:14 WrapperNode [2024-09-13 10:11:14,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-13 10:11:14,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-13 10:11:14,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-13 10:11:14,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-13 10:11:14,424 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,425 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,430 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,437 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure f is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-13 10:11:14,437 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,438 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,440 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,441 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,441 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,442 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-13 10:11:14,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-13 10:11:14,444 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-13 10:11:14,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-13 10:11:14,445 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 13.09 10:11:14" (1/1) ... [2024-09-13 10:11:14,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-13 10:11:14,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-13 10:11:14,473 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 10:11:14,486 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 10:11:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-13 10:11:14,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-13 10:11:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-13 10:11:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2024-09-13 10:11:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-09-13 10:11:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure f [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-13 10:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-13 10:11:14,571 INFO L242 CfgBuilder]: Building ICFG [2024-09-13 10:11:14,573 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-13 10:11:14,592 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:11:14,626 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-13 10:11:14,653 INFO L291 CfgBuilder]: Performing block encoding [2024-09-13 10:11:14,673 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-13 10:11:14,673 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-13 10:11:14,674 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:11:14 BoogieIcfgContainer [2024-09-13 10:11:14,674 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-13 10:11:14,674 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-13 10:11:14,674 INFO L270 PluginConnector]: Initializing Referee... [2024-09-13 10:11:14,675 INFO L274 PluginConnector]: Referee initialized [2024-09-13 10:11:14,675 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:11:14" (1/4) ... [2024-09-13 10:11:14,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6df68ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,676 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 10:11:14" (2/4) ... [2024-09-13 10:11:14,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6df68ea5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,676 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 13.09 10:11:14" (3/4) ... [2024-09-13 10:11:14,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6df68ea5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,676 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:11:14" (4/4) ... [2024-09-13 10:11:14,677 INFO L79 RefereeObserver]: Analyzing ICFG afterrec_2calls-2.c [2024-09-13 10:11:14,680 INFO L112 InvariantChecker]: Found 0 loops. [2024-09-13 10:11:14,681 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-13 10:11:14,682 INFO L367 InvariantChecker]: Will check inductivity from ENTRY f2ENTRY to ERROR_LOC f2Err1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 4 edges. [2024-09-13 10:11:14,682 INFO L367 InvariantChecker]: Will check inductivity from ENTRY f2ENTRY to ERROR_LOC f2Err0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-13 10:11:14,682 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-13 10:11:14,683 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 1 edges. [2024-09-13 10:11:14,683 INFO L367 InvariantChecker]: Will check inductivity from ENTRY fENTRY to ERROR_LOC fErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 4 edges. [2024-09-13 10:11:14,683 INFO L367 InvariantChecker]: Will check inductivity from ENTRY f2ENTRY to ERROR_LOC f2Err2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 6 edges. [2024-09-13 10:11:14,684 INFO L130 InvariantChecker]: Will check 7 loop-free subgraphs from procedure entry to error location [2024-09-13 10:11:14,722 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:11:14,723 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,724 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,725 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,726 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,727 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,742 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-13 10:11:14,743 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,743 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,743 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,744 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,746 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,768 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:11:14,777 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-13 10:11:14,778 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,778 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,778 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,778 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,778 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,782 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-13 10:11:14,783 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,783 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,783 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,783 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,783 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,784 INFO L514 InvariantChecker]: The annotation(s) from entry f2ENTRY to error location f2Err1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-13 10:11:14,794 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:11:14,794 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,794 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,794 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,794 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,795 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,796 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:11:14,797 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,797 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,797 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,797 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,797 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,798 INFO L514 InvariantChecker]: The annotation(s) from entry f2ENTRY to error location f2Err0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:11:14,806 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-13 10:11:14,806 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,806 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,807 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,807 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,807 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,812 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-13 10:11:14,814 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,814 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,814 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,814 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,815 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,816 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:11:14,820 INFO L314 BlockEncoder]: Initial Icfg 2 locations, 1 edges [2024-09-13 10:11:14,820 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,821 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,821 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,821 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,821 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,821 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,821 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,821 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,822 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,823 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-13 10:11:14,831 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-13 10:11:14,831 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,831 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,832 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,832 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,832 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,836 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-13 10:11:14,836 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,836 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,836 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,836 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,836 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,838 INFO L514 InvariantChecker]: The annotation(s) from entry fENTRY to error location fErr1ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-13 10:11:14,846 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-13 10:11:14,847 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-13 10:11:14,847 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-13 10:11:14,847 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-13 10:11:14,847 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-13 10:11:14,847 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,849 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-13 10:11:14,849 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-13 10:11:14,849 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-13 10:11:14,849 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-13 10:11:14,849 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-13 10:11:14,852 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-13 10:11:14,856 INFO L514 InvariantChecker]: The annotation(s) from entry f2ENTRY to error location f2Err2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-13 10:11:14,859 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-13 10:11:14,859 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6df68ea5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 10:11:14, skipping insertion in model container [2024-09-13 10:11:14,860 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-13 10:11:14,862 INFO L158 Benchmark]: Toolchain (without parser) took 663.23ms. Allocated memory is still 155.2MB. Free memory was 84.9MB in the beginning and 103.7MB in the end (delta: -18.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:14,862 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:14,862 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-13 10:11:14,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.98ms. Allocated memory is still 155.2MB. Free memory was 84.7MB in the beginning and 71.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:11:14,863 INFO L158 Benchmark]: Boogie Preprocessor took 29.12ms. Allocated memory is still 155.2MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-13 10:11:14,863 INFO L158 Benchmark]: RCFGBuilder took 230.03ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 117.0MB in the end (delta: -47.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-09-13 10:11:14,864 INFO L158 Benchmark]: Referee took 186.25ms. Allocated memory is still 155.2MB. Free memory was 117.0MB in the beginning and 103.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-13 10:11:14,866 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from entry of procedure f to exit of procedure f. Annotation is valid for all loop-free paths from entry of procedure f to check that procedure precondition always holds at line 11. Annotation is valid for all loop-free paths from entry of procedure f2 to check that procedure precondition always holds at line 18. Annotation is valid for all loop-free paths from entry of procedure f to check that a call to reach_error is unreachable at line 12. Annotation is valid for all loop-free paths from entry of procedure f2 to check that a call to reach_error is unreachable at line 19. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 22. Annotation is valid for all loop-free paths from entry of procedure f2 to exit of procedure f2. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 86.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.98ms. Allocated memory is still 155.2MB. Free memory was 84.7MB in the beginning and 71.9MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.12ms. Allocated memory is still 155.2MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 230.03ms. Allocated memory is still 155.2MB. Free memory was 70.0MB in the beginning and 117.0MB in the end (delta: -47.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Referee took 186.25ms. Allocated memory is still 155.2MB. Free memory was 117.0MB in the beginning and 103.7MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-13 10:11:14,887 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...