./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/nec40.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/nec40.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/nec40.c ../results/automizer-verification-files/SV-COMP24_unreach-call/nec40.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 20:46:14,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-11 20:46:14,760 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-11 20:46:14,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-11 20:46:14,767 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-11 20:46:14,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-11 20:46:14,793 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-11 20:46:14,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-11 20:46:14,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-11 20:46:14,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-11 20:46:14,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-11 20:46:14,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-11 20:46:14,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-11 20:46:14,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-11 20:46:14,805 INFO L153 SettingsManager]: * Use SBE=true [2024-09-11 20:46:14,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-11 20:46:14,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-11 20:46:14,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-11 20:46:14,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-11 20:46:14,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-11 20:46:14,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-11 20:46:14,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-11 20:46:14,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-11 20:46:14,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-11 20:46:14,809 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-11 20:46:14,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-11 20:46:14,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-11 20:46:14,810 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-11 20:46:14,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-11 20:46:14,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-11 20:46:14,810 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-11 20:46:14,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-11 20:46:14,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:14,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-11 20:46:14,811 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-11 20:46:14,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-11 20:46:14,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-11 20:46:14,812 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-11 20:46:14,812 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-11 20:46:14,812 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-11 20:46:14,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-11 20:46:14,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-11 20:46:14,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-11 20:46:15,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-11 20:46:15,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-11 20:46:15,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-11 20:46:15,065 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-11 20:46:15,065 INFO L274 PluginConnector]: CDTParser initialized [2024-09-11 20:46:15,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops/nec40.c [2024-09-11 20:46:16,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-11 20:46:16,628 INFO L384 CDTParser]: Found 1 translation units. [2024-09-11 20:46:16,629 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/nec40.c [2024-09-11 20:46:16,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ea5828855/867ed92da85b4cab8574b5c3a4c7ebcf/FLAG5575bdc3d [2024-09-11 20:46:16,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ea5828855/867ed92da85b4cab8574b5c3a4c7ebcf [2024-09-11 20:46:16,650 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-11 20:46:16,651 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-11 20:46:16,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/nec40.yml/witness-2.1.yml [2024-09-11 20:46:16,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-11 20:46:16,700 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-11 20:46:16,702 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:16,702 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-11 20:46:16,707 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-11 20:46:16,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:16" (1/2) ... [2024-09-11 20:46:16,710 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4123fc91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:16, skipping insertion in model container [2024-09-11 20:46:16,710 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:46:16" (1/2) ... [2024-09-11 20:46:16,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@430f6eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:46:16, skipping insertion in model container [2024-09-11 20:46:16,712 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 08:46:16" (2/2) ... [2024-09-11 20:46:16,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4123fc91 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:16, skipping insertion in model container [2024-09-11 20:46:16,712 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 08:46:16" (2/2) ... [2024-09-11 20:46:16,721 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-11 20:46:16,722 INFO L1541 ArrayList]: Loop invariant at [L20-L23] (i == 0) [2024-09-11 20:46:16,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-11 20:46:16,897 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/nec40.c[317,330] [2024-09-11 20:46:16,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:16,928 INFO L200 MainTranslator]: Completed pre-run [2024-09-11 20:46:16,941 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/nec40.c[317,330] Start Parsing Local [2024-09-11 20:46:16,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-11 20:46:16,986 INFO L204 MainTranslator]: Completed translation [2024-09-11 20:46:16,989 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 11.09 08:46:16 WrapperNode [2024-09-11 20:46:16,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-11 20:46:16,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-11 20:46:16,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-11 20:46:16,990 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-11 20:46:17,004 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,004 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,012 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,034 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 8, 3, 4]. 47 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 4 writes are split as follows [0, 0, 1, 3]. [2024-09-11 20:46:17,037 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,037 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,045 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,049 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,052 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,053 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-11 20:46:17,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-11 20:46:17,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-11 20:46:17,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-11 20:46:17,061 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 08:46:16" (1/1) ... [2024-09-11 20:46:17,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-11 20:46:17,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-11 20:46:17,105 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 20:46:17,112 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 20:46:17,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-11 20:46:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-11 20:46:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-11 20:46:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-11 20:46:17,153 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-11 20:46:17,154 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-09-11 20:46:17,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-11 20:46:17,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-11 20:46:17,257 INFO L242 CfgBuilder]: Building ICFG [2024-09-11 20:46:17,259 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-11 20:46:17,438 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-09-11 20:46:17,439 INFO L291 CfgBuilder]: Performing block encoding [2024-09-11 20:46:17,487 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-11 20:46:17,491 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-11 20:46:17,492 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:46:17 BoogieIcfgContainer [2024-09-11 20:46:17,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-11 20:46:17,492 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-11 20:46:17,492 INFO L270 PluginConnector]: Initializing Referee... [2024-09-11 20:46:17,497 INFO L274 PluginConnector]: Referee initialized [2024-09-11 20:46:17,498 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 11.09 08:46:16" (1/4) ... [2024-09-11 20:46:17,498 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@63c6419b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 11.09 08:46:17, skipping insertion in model container [2024-09-11 20:46:17,516 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 08:46:16" (2/4) ... [2024-09-11 20:46:17,517 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@63c6419b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:17, skipping insertion in model container [2024-09-11 20:46:17,517 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 08:46:16" (3/4) ... [2024-09-11 20:46:17,517 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@63c6419b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 11.09 08:46:17, skipping insertion in model container [2024-09-11 20:46:17,517 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 08:46:17" (4/4) ... [2024-09-11 20:46:17,518 INFO L79 RefereeObserver]: Analyzing ICFG nec40.c [2024-09-11 20:46:17,527 INFO L112 InvariantChecker]: Found 1 loops. [2024-09-11 20:46:17,528 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L20-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 4 edges. [2024-09-11 20:46:17,531 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 20:46:17,531 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-11 20:46:17,532 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head [2024-09-11 20:46:17,577 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-11 20:46:17,579 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:17,579 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:17,580 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:17,581 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:17,583 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,595 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-11 20:46:17,597 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,598 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:17,598 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:17,598 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:17,599 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:17,641 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-11 20:46:17,641 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:17,642 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:17,642 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:17,642 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:17,642 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,644 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-11 20:46:17,645 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,645 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:17,645 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:17,645 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:17,645 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:17,651 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-11 20:46:17,662 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-11 20:46:17,663 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-11 20:46:17,664 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-11 20:46:17,664 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-11 20:46:17,664 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-11 20:46:17,664 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,667 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-11 20:46:17,668 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-11 20:46:17,669 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-11 20:46:17,669 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-11 20:46:17,669 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-11 20:46:17,669 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-11 20:46:17,683 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,684 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] [2024-09-11 20:46:17,686 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,686 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] [2024-09-11 20:46:17,688 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-11 20:46:17,689 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@63c6419b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 11.09 08:46:17, skipping insertion in model container [2024-09-11 20:46:17,689 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-11 20:46:17,691 INFO L158 Benchmark]: Toolchain (without parser) took 990.54ms. Allocated memory is still 169.9MB. Free memory was 100.6MB in the beginning and 127.2MB in the end (delta: -26.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:17,692 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 91.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:17,693 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-11 20:46:17,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.78ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 86.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-11 20:46:17,695 INFO L158 Benchmark]: Boogie Preprocessor took 69.19ms. Allocated memory is still 169.9MB. Free memory was 86.2MB in the beginning and 83.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-11 20:46:17,696 INFO L158 Benchmark]: RCFGBuilder took 431.71ms. Allocated memory is still 169.9MB. Free memory was 83.9MB in the beginning and 136.3MB in the end (delta: -52.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-09-11 20:46:17,696 INFO L158 Benchmark]: Referee took 197.11ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 127.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-11 20:46:17,700 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. [2024-09-11 20:46:17,703 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,703 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] [2024-09-11 20:46:17,704 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,704 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] [2024-09-11 20:46:17,705 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,705 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] [2024-09-11 20:46:17,705 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] [2024-09-11 20:46:17,705 WARN L945 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] 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 not valid for all loop-free paths from loop head at line 20 to loop head at line 20. One counterexample starts in i=0, x={7:0}, y={9:3} and ends in i=1, x={7:0}, y={9:3}. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 20. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 91.2MB in the beginning and 91.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 169.9MB. Free memory is still 102.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.78ms. Allocated memory is still 169.9MB. Free memory was 100.4MB in the beginning and 86.2MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.19ms. Allocated memory is still 169.9MB. Free memory was 86.2MB in the beginning and 83.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.71ms. Allocated memory is still 169.9MB. Free memory was 83.9MB in the beginning and 136.3MB in the end (delta: -52.5MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Referee took 197.11ms. Allocated memory is still 169.9MB. Free memory was 136.3MB in the beginning and 127.2MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int#2,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int#2,GLOBAL],[IdentifierExpression[~#x~0!base,GLOBAL]]] RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-11 20:46:17,736 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE