./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/sqrt1-ll_unwindbound50.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c ../results/automizer-verification-files/SV-COMP24_unreach-call/sqrt1-ll_unwindbound50.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:53:36,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:53:36,360 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:53:36,368 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:53:36,374 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:53:36,415 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:53:36,416 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:53:36,416 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:53:36,417 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:53:36,417 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:53:36,421 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:53:36,434 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:53:36,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:53:36,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:53:36,436 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:53:36,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:53:36,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:53:36,439 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:53:36,439 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:53:36,441 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:53:36,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:53:36,443 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:53:36,443 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:53:36,443 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:53:36,444 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:53:36,444 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:53:36,444 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:53:36,444 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:53:36,444 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:53:36,445 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:53:36,445 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:53:36,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:53:36,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:53:36,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:53:36,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:53:36,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:53:36,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:53:36,448 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:53:36,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:53:36,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:53:36,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:53:36,734 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:53:36,739 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:53:36,740 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/sqrt1-ll_unwindbound50.yml/witness-2.1.yml [2024-09-11 20:53:36,825 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:53:36,825 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:53:36,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-11 20:53:38,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:53:38,445 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:53:38,446 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-11 20:53:38,451 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/622ddb4a9/68e877db7a404544ae77d3b84a979a5d/FLAG153c96670 [2024-09-11 20:53:38,462 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/622ddb4a9/68e877db7a404544ae77d3b84a979a5d [2024-09-11 20:53:38,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:53:38,464 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:53:38,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:53:38,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:53:38,469 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:53:38,469 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:36" (1/2) ... [2024-09-11 20:53:38,470 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484bae67 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:38, skipping insertion in model container [2024-09-11 20:53:38,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:36" (1/2) ... [2024-09-11 20:53:38,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5a430a4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:38, skipping insertion in model container [2024-09-11 20:53:38,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:53:38" (2/2) ... [2024-09-11 20:53:38,472 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@484bae67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38, skipping insertion in model container [2024-09-11 20:53:38,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:53:38" (2/2) ... [2024-09-11 20:53:38,477 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:53:38,477 INFO L1541 ArrayList]: Loop invariant at [L30-L42] ((((((__int128) a * a) + 1) + ((__int128) 2 * a)) == s) && (((((__int128) a * a) + 2) + ((__int128) a * 4)) == (s + t))) [2024-09-11 20:53:38,477 INFO L1541 ArrayList]: Function contract at [L11]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-11 20:53:38,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:53:38,638 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] [2024-09-11 20:53:38,650 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:53:38,656 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:53:38,686 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] Start Parsing Local [2024-09-11 20:53:38,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:53:38,704 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:53:38,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38 WrapperNode [2024-09-11 20:53:38,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:53:38,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:53:38,706 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:53:38,706 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:53:38,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,719 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,726 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 [2024-09-11 20:53:38,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,733 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:53:38,734 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:53:38,734 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:53:38,734 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:53:38,735 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (1/1) ... [2024-09-11 20:53:38,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:53:38,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:53:38,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:53:38,758 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:53:38,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:53:38,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:53:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-11 20:53:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:53:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-11 20:53:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-11 20:53:38,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:53:38,841 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:53:38,843 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:53:38,949 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:53:38,983 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-09-11 20:53:38,984 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:53:39,000 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:53:39,000 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:53:39,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:53:39 BoogieIcfgContainer [2024-09-11 20:53:39,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:53:39,001 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:53:39,002 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:53:39,002 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:53:39,002 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:36" (1/4) ... [2024-09-11 20:53:39,003 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2305469 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:53:39, skipping insertion in model container [2024-09-11 20:53:39,003 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:53:38" (2/4) ... [2024-09-11 20:53:39,003 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2305469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:53:39, skipping insertion in model container [2024-09-11 20:53:39,003 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:38" (3/4) ... [2024-09-11 20:53:39,003 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2305469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:53:39, skipping insertion in model container [2024-09-11 20:53:39,004 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:53:39" (4/4) ... [2024-09-11 20:53:39,004 INFO L79 RefereeObserver]: Analyzing ICFG sqrt1-ll_unwindbound50.c [2024-09-11 20:53:39,007 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:53:39,008 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:53:39,008 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 11 edges. [2024-09-11 20:53:39,008 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:53:39,008 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:53:39,008 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 12 edges. [2024-09-11 20:53:39,009 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:53:39,009 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:53:39,009 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:53:39,009 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:53:39,009 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-11 20:53:39,009 INFO L130 InvariantChecker]: Will check 6 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:53:39,052 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:53:39,055 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,055 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,056 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,057 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,058 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,081 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:53:39,082 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,082 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,082 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,082 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,083 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,098 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,137 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 11 edges [2024-09-11 20:53:39,137 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,137 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,137 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,137 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,137 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,174 INFO L101 BaseMinimizeStates]: Removed 22 edges and 8 locations by large block encoding [2024-09-11 20:53:39,174 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,174 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,174 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,174 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,180 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,187 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr5REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,205 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:53:39,206 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,207 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,207 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,207 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,207 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,214 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:53:39,214 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,215 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,215 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,215 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,215 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,218 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,234 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:53:39,234 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,234 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,234 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,235 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,235 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,256 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:53:39,257 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,257 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,257 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,257 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,260 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,264 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr4REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,271 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 12 edges [2024-09-11 20:53:39,272 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,272 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,272 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,272 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,272 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,294 INFO L101 BaseMinimizeStates]: Removed 26 edges and 9 locations by large block encoding [2024-09-11 20:53:39,294 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,295 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,295 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,295 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,297 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,301 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr6REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,311 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:53:39,312 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,312 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,312 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,312 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,313 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,314 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:53:39,314 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,314 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,314 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,314 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,315 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,319 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:53:39,329 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:53:39,330 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,330 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,330 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,330 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,331 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,333 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:53:39,333 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,333 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,333 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,333 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,333 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,335 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:53:39,344 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:53:39,344 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,345 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,345 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,345 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,345 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,346 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:53:39,347 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,347 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,347 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,347 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,347 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,349 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:53:39,357 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 8 edges [2024-09-11 20:53:39,358 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,358 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,358 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,359 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,359 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,368 INFO L101 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2024-09-11 20:53:39,368 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,368 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,369 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,369 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,369 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,371 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:53:39,378 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:53:39,378 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:39,378 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:39,378 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:39,378 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:39,379 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,384 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:53:39,385 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:39,385 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:39,386 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:39,386 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:39,386 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:39,388 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:39,391 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness [2024-09-11 20:53:39,391 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2305469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:53:39, skipping insertion in model container [2024-09-11 20:53:39,392 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:53:39,393 INFO L158 Benchmark]: Toolchain (without parser) took 928.53ms. Allocated memory is still 209.7MB. Free memory was 136.1MB in the beginning and 136.6MB in the end (delta: -504.9kB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2024-09-11 20:53:39,394 INFO L158 Benchmark]: Witness Parser took 3.88ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 118.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:53:39,394 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 209.7MB. Free memory is still 183.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:53:39,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.27ms. Allocated memory is still 209.7MB. Free memory was 135.9MB in the beginning and 122.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:53:39,395 INFO L158 Benchmark]: Boogie Preprocessor took 27.81ms. Allocated memory is still 209.7MB. Free memory was 122.6MB in the beginning and 120.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:53:39,396 INFO L158 Benchmark]: RCFGBuilder took 267.25ms. Allocated memory is still 209.7MB. Free memory was 120.3MB in the beginning and 104.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:53:39,397 INFO L158 Benchmark]: Referee took 390.20ms. Allocated memory is still 209.7MB. Free memory was 104.7MB in the beginning and 136.6MB in the end (delta: -31.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-09-11 20:53:39,399 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 loop head at line 30. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 30. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 45. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 44. 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 loop head at line 30 to loop head at line 30. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 31. Annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 32. 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 3.88ms. Allocated memory is still 151.0MB. Free memory was 118.4MB in the beginning and 118.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 209.7MB. Free memory is still 183.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.27ms. Allocated memory is still 209.7MB. Free memory was 135.9MB in the beginning and 122.6MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.81ms. Allocated memory is still 209.7MB. Free memory was 122.6MB in the beginning and 120.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.25ms. Allocated memory is still 209.7MB. Free memory was 120.3MB in the beginning and 104.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 390.20ms. Allocated memory is still 209.7MB. Free memory was 104.7MB in the beginning and 136.6MB in the end (delta: -31.9MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:53:39,424 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c ../results/automizer-verification-files/SV-COMP24_unreach-call/sqrt1-ll_unwindbound50.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-11 20:53:41,298 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:53:41,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-11 20:53:41,354 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:53:41,355 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:53:41,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:53:41,386 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:53:41,386 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:53:41,387 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:53:41,387 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:53:41,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:53:41,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:53:41,388 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:53:41,388 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:53:41,388 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:53:41,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:53:41,389 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:53:41,389 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:53:41,392 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:53:41,392 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:53:41,393 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:53:41,393 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:53:41,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:53:41,393 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-11 20:53:41,394 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-11 20:53:41,394 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:53:41,394 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-11 20:53:41,397 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:53:41,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:53:41,397 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:53:41,397 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:53:41,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:53:41,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:53:41,399 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-11 20:53:41,399 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-11 20:53:41,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:53:41,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:53:41,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:53:41,403 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:53:41,403 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-11 20:53:41,404 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:53:41,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:53:41,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:53:41,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:53:41,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:53:41,693 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:53:41,695 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-11 20:53:43,132 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:53:43,296 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:53:43,297 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-11 20:53:43,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/a22f3536c/f08c7d2d03864972b551f13080148655/FLAGb03e84497 [2024-09-11 20:53:43,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/a22f3536c/f08c7d2d03864972b551f13080148655 [2024-09-11 20:53:43,325 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:53:43,326 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:53:43,327 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/sqrt1-ll_unwindbound50.yml/witness-2.1.yml [2024-09-11 20:53:43,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:53:43,371 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:53:43,373 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:53:43,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:53:43,377 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:53:43,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:53:43" (1/2) ... [2024-09-11 20:53:43,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240aa277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:43, skipping insertion in model container [2024-09-11 20:53:43,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:53:43" (1/2) ... [2024-09-11 20:53:43,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ab882bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:53:43, skipping insertion in model container [2024-09-11 20:53:43,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:43" (2/2) ... [2024-09-11 20:53:43,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240aa277 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43, skipping insertion in model container [2024-09-11 20:53:43,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:43" (2/2) ... [2024-09-11 20:53:43,388 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:53:43,390 INFO L1541 ArrayList]: Loop invariant at [L30-L42] ((((((__int128) a * a) + 1) + ((__int128) 2 * a)) == s) && (((((__int128) a * a) + 2) + ((__int128) a * 4)) == (s + t))) [2024-09-11 20:53:43,390 INFO L1541 ArrayList]: Function contract at [L11]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-11 20:53:43,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:53:43,540 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] [2024-09-11 20:53:43,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:53:43,578 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-11 20:53:43,641 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] Start Parsing Local [2024-09-11 20:53:43,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:53:43,669 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:53:43,669 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43 WrapperNode [2024-09-11 20:53:43,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:53:43,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:53:43,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:53:43,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:53:43,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,695 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 [2024-09-11 20:53:43,695 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,695 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,703 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,703 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:53:43,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:53:43,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:53:43,706 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:53:43,707 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (1/1) ... [2024-09-11 20:53:43,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:53:43,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:53:43,740 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-11 20:53:43,743 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-11 20:53:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:53:43,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:53:43,787 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:53:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-11 20:53:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:53:43,788 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:53:43,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-11 20:53:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:53:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-11 20:53:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-11 20:53:43,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:53:43,854 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:53:43,855 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:53:44,713 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-11 20:53:44,761 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-09-11 20:53:44,761 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:53:44,781 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:53:44,781 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:53:44,782 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:53:44 BoogieIcfgContainer [2024-09-11 20:53:44,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:53:44,782 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:53:44,782 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:53:44,783 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:53:44,783 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:53:43" (1/4) ... [2024-09-11 20:53:44,784 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2a0c2de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:53:44, skipping insertion in model container [2024-09-11 20:53:44,784 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 11.09 08:53:43" (2/4) ... [2024-09-11 20:53:44,784 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2a0c2de6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:53:44, skipping insertion in model container [2024-09-11 20:53:44,784 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:53:43" (3/4) ... [2024-09-11 20:53:44,784 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2a0c2de6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:53:44, skipping insertion in model container [2024-09-11 20:53:44,784 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:53:44" (4/4) ... [2024-09-11 20:53:44,785 INFO L79 RefereeObserver]: Analyzing ICFG sqrt1-ll_unwindbound50.c [2024-09-11 20:53:44,788 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:53:44,789 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:53:44,789 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 11 edges. [2024-09-11 20:53:44,789 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-11 20:53:44,789 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr4REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 10 edges. [2024-09-11 20:53:44,789 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 12 edges. [2024-09-11 20:53:44,790 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-11 20:53:44,790 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:53:44,790 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-11 20:53:44,790 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-11 20:53:44,790 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L30-4 to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 6 edges. [2024-09-11 20:53:44,791 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 6 loop-free subgraphs from loop head to error location, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head [2024-09-11 20:53:44,834 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-11 20:53:44,835 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:44,835 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:44,836 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:44,838 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:44,839 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:44,869 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-11 20:53:44,870 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:44,871 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:44,871 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:44,871 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:44,872 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:47,269 INFO L514 InvariantChecker]: The annotation(s) from loop head L30-4 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-11 20:53:47,320 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 11 edges [2024-09-11 20:53:47,320 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:47,320 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:47,320 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:47,320 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:47,320 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:47,391 INFO L101 BaseMinimizeStates]: Removed 22 edges and 8 locations by large block encoding [2024-09-11 20:53:47,393 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:47,393 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:47,394 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:47,394 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:47,400 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:51,465 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:53:51,504 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:53:51,505 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:51,505 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:51,505 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:51,505 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:51,505 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:51,514 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:53:51,515 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:51,515 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:51,515 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:51,515 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:51,515 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:55,575 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:53:55,610 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-11 20:53:55,610 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:55,610 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:55,611 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:55,611 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:55,611 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:55,624 INFO L101 BaseMinimizeStates]: Removed 18 edges and 7 locations by large block encoding [2024-09-11 20:53:55,625 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:55,625 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:55,625 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:55,625 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:55,627 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:53:59,688 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:53:59,729 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 12 edges [2024-09-11 20:53:59,729 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:53:59,729 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:53:59,729 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:53:59,730 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:53:59,730 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:59,769 INFO L101 BaseMinimizeStates]: Removed 26 edges and 9 locations by large block encoding [2024-09-11 20:53:59,769 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:53:59,769 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:53:59,770 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:53:59,770 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:53:59,776 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:03,856 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:54:03,896 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-11 20:54:03,896 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:03,896 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:03,896 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:03,896 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:03,897 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,899 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-11 20:54:03,900 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,901 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:03,901 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:03,901 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:03,901 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:03,906 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-11 20:54:03,929 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:54:03,930 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:03,930 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:03,930 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:03,930 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:03,930 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,931 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:54:03,932 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,932 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:03,932 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:03,932 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:03,932 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:03,933 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-11 20:54:03,941 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:54:03,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:03,942 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:03,942 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:03,942 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:03,944 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,946 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:54:03,946 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,946 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:03,946 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:03,946 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:03,947 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:03,949 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:54:03,958 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 8 edges [2024-09-11 20:54:03,959 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:03,959 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:03,959 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:03,959 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:03,959 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,975 INFO L101 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2024-09-11 20:54:03,975 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:03,976 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:03,976 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:03,976 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:03,976 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:08,151 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:54:08,209 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-11 20:54:08,209 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:54:08,209 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:54:08,209 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:54:08,209 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:54:08,210 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:08,216 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-11 20:54:08,217 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:54:08,217 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:54:08,217 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:54:08,217 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:54:08,217 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:54:12,304 INFO L510 InvariantChecker]: unknown inductivity: todo good error message [2024-09-11 20:54:12,335 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness [2024-09-11 20:54:12,335 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2a0c2de6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:54:12, skipping insertion in model container [2024-09-11 20:54:12,335 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:54:12,337 INFO L158 Benchmark]: Toolchain (without parser) took 28964.97ms. Allocated memory is still 100.7MB. Free memory was 59.3MB in the beginning and 47.6MB in the end (delta: 11.7MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:12,337 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 62.9MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:12,337 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:54:12,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 100.7MB. Free memory was 59.3MB in the beginning and 78.6MB in the end (delta: -19.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:12,338 INFO L158 Benchmark]: Boogie Preprocessor took 35.55ms. Allocated memory is still 100.7MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:54:12,338 INFO L158 Benchmark]: RCFGBuilder took 1075.83ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 57.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-09-11 20:54:12,338 INFO L158 Benchmark]: Referee took 27553.01ms. Allocated memory is still 100.7MB. Free memory was 57.6MB in the beginning and 47.6MB in the end (delta: 10.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-09-11 20:54:12,340 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness Insufficient resources for checking whether annotation is a valid proof of correctness Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 30. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 44. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 31. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to loop head at line 30. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 45. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 30 to check that procedure precondition always holds at line 32. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 30. 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 loop head at line 30 to check that procedure precondition always holds at line 31. 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 62.9MB. Free memory is still 30.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.40ms. Allocated memory is still 100.7MB. Free memory was 59.3MB in the beginning and 78.6MB in the end (delta: -19.3MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.55ms. Allocated memory is still 100.7MB. Free memory was 78.6MB in the beginning and 76.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1075.83ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 57.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Referee took 27553.01ms. Allocated memory is still 100.7MB. Free memory was 57.6MB in the beginning and 47.6MB in the end (delta: 10.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:54:12,396 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: UNKNOWN