./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/nested5-1.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.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/loops-crafted-1/nested5-1.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.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 [2024-09-12 16:48:52,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 16:48:52,078 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-12 16:48:52,083 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 16:48:52,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 16:48:52,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 16:48:52,110 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 16:48:52,111 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 16:48:52,111 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 16:48:52,112 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 16:48:52,113 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 16:48:52,113 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 16:48:52,114 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 16:48:52,114 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 16:48:52,115 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 16:48:52,116 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 16:48:52,116 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 16:48:52,116 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 16:48:52,117 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 16:48:52,117 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 16:48:52,117 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 16:48:52,117 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 16:48:52,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 16:48:52,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 16:48:52,121 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 16:48:52,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 16:48:52,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 16:48:52,121 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 16:48:52,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 16:48:52,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 16:48:52,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 16:48:52,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 16:48:52,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:52,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 16:48:52,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 16:48:52,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 16:48:52,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 16:48:52,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-12 16:48:52,313 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 16:48:52,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 16:48:52,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 16:48:52,335 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-12 16:48:52,336 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-12 16:48:52,337 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nested5-1.yml/witness-2.1.yml [2024-09-12 16:48:52,386 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 16:48:52,386 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 16:48:52,387 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2024-09-12 16:48:53,694 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 16:48:53,850 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 16:48:53,851 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2024-09-12 16:48:53,856 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/918472515/eb9b6c8a8a054d27af0727a5c55a4fed/FLAGc776cac7a [2024-09-12 16:48:54,256 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/918472515/eb9b6c8a8a054d27af0727a5c55a4fed [2024-09-12 16:48:54,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 16:48:54,258 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-12 16:48:54,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:54,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 16:48:54,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 16:48:54,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:52" (1/2) ... [2024-09-12 16:48:54,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a5d4a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:52" (1/2) ... [2024-09-12 16:48:54,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@67a867be and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:54" (2/2) ... [2024-09-12 16:48:54,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a5d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 04:48:54" (2/2) ... [2024-09-12 16:48:54,271 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-12 16:48:54,272 INFO L1541 ArrayList]: Loop invariant at [L23-L23] ((v == 0) || (((v + 4294967295) % 4294967296) < 10)) [2024-09-12 16:48:54,272 INFO L1541 ArrayList]: Function contract at [L5]: requires ((0 <= \old(cond)) && (\old(cond) <= 3)), ensures ((0 <= \old(cond)) && (\old(cond) <= 3)) [2024-09-12 16:48:54,292 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 16:48:54,404 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/loops-crafted-1/nested5-1.c[321,334] [2024-09-12 16:48:54,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:54,434 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-12 16:48:54,473 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/loops-crafted-1/nested5-1.c[321,334] Start Parsing Local [2024-09-12 16:48:54,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 16:48:54,502 INFO L204 MainTranslator]: Completed translation [2024-09-12 16:48:54,503 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54 WrapperNode [2024-09-12 16:48:54,503 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 16:48:54,504 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 16:48:54,504 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 16:48:54,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 16:48:54,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,531 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 [2024-09-12 16:48:54,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,531 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,547 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,548 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 16:48:54,549 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 16:48:54,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 16:48:54,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 16:48:54,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (1/1) ... [2024-09-12 16:48:54,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 16:48:54,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-12 16:48:54,577 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) [2024-09-12 16:48:54,579 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 [2024-09-12 16:48:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 16:48:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 16:48:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-12 16:48:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 16:48:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-12 16:48:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-12 16:48:54,735 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 16:48:54,737 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 16:48:54,875 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-12 16:48:54,917 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-09-12 16:48:54,918 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 16:48:54,944 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 16:48:54,948 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-12 16:48:54,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:54 BoogieIcfgContainer [2024-09-12 16:48:54,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 16:48:54,949 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-12 16:48:54,949 INFO L270 PluginConnector]: Initializing Referee... [2024-09-12 16:48:54,950 INFO L274 PluginConnector]: Referee initialized [2024-09-12 16:48:54,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 12.09 04:48:52" (1/4) ... [2024-09-12 16:48:54,950 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e36a47b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,950 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 12.09 04:48:54" (2/4) ... [2024-09-12 16:48:54,951 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e36a47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,951 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 04:48:54" (3/4) ... [2024-09-12 16:48:54,951 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e36a47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 12.09 04:48:54, skipping insertion in model container [2024-09-12 16:48:54,951 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 04:48:54" (4/4) ... [2024-09-12 16:48:54,953 INFO L79 RefereeObserver]: Analyzing ICFG nested5-1.c [2024-09-12 16:48:54,956 INFO L112 InvariantChecker]: Found 5 loops. [2024-09-12 16:48:54,957 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-12 16:48:54,957 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-09-12 16:48:54,957 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L22-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-12 16:48:54,957 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-12 16:48:54,957 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-12 16:48:54,957 INFO L130 InvariantChecker]: Will check 2 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to error location [2024-09-12 16:48:54,990 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-12 16:48:54,991 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:54,991 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:54,992 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:54,993 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:54,994 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,000 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-12 16:48:55,001 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,001 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:55,001 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:55,002 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:55,004 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:55,015 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-12 16:48:55,024 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:48:55,024 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:55,024 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:55,025 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:55,025 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:55,025 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,029 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:48:55,030 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,030 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:55,030 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:55,030 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:55,030 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:55,032 INFO L514 InvariantChecker]: The annotation(s) from loop head L23-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:48:55,040 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-12 16:48:55,040 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:55,040 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:55,040 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:55,040 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:55,040 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,042 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-12 16:48:55,042 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,042 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:55,043 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:55,043 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:55,043 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:55,044 INFO L514 InvariantChecker]: The annotation(s) from loop head L22-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-12 16:48:55,052 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-12 16:48:55,052 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:55,052 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:55,052 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:55,053 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:55,053 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,056 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-12 16:48:55,056 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,056 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:55,056 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:55,056 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:55,057 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:55,061 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-12 16:48:55,068 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-12 16:48:55,069 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-12 16:48:55,069 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-12 16:48:55,069 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-12 16:48:55,069 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-12 16:48:55,069 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,070 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-12 16:48:55,071 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-12 16:48:55,071 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-12 16:48:55,071 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-12 16:48:55,071 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-12 16:48:55,071 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-12 16:48:55,080 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-12 16:48:55,081 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e36a47b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 12.09 04:48:55, skipping insertion in model container [2024-09-12 16:48:55,081 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-12 16:48:55,082 INFO L158 Benchmark]: Toolchain (without parser) took 824.06ms. Allocated memory is still 169.9MB. Free memory was 97.5MB in the beginning and 116.3MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:55,083 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:55,083 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 169.9MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 16:48:55,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.41ms. Allocated memory is still 169.9MB. Free memory was 97.3MB in the beginning and 84.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:48:55,084 INFO L158 Benchmark]: Boogie Preprocessor took 45.16ms. Allocated memory is still 169.9MB. Free memory was 84.1MB in the beginning and 82.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 16:48:55,084 INFO L158 Benchmark]: RCFGBuilder took 399.26ms. Allocated memory is still 169.9MB. Free memory was 82.0MB in the beginning and 130.1MB in the end (delta: -48.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-12 16:48:55,084 INFO L158 Benchmark]: Referee took 131.96ms. Allocated memory is still 169.9MB. Free memory was 130.1MB in the beginning and 116.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-12 16:48:55,086 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 22 to loop head at line 23. 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 23 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.62ms. Allocated memory is still 169.9MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.41ms. Allocated memory is still 169.9MB. Free memory was 97.3MB in the beginning and 84.1MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.16ms. Allocated memory is still 169.9MB. Free memory was 84.1MB in the beginning and 82.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 399.26ms. Allocated memory is still 169.9MB. Free memory was 82.0MB in the beginning and 130.1MB in the end (delta: -48.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 131.96ms. Allocated memory is still 169.9MB. Free memory was 130.1MB in the beginning and 116.3MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-12 16:48:55,110 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE