./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ca4ee3dd 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/loop-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.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-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:08:54,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:54,375 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 20:08:54,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:54,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:54,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:54,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:54,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:54,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:54,399 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:54,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:54,400 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:54,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:54,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:54,404 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:54,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:54,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:54,404 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:54,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 20:08:54,405 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:54,405 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:54,405 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:54,405 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:54,406 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:54,406 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:54,406 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:54,406 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:54,406 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:54,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:54,407 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:54,407 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:54,407 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:54,407 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:54,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:54,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:54,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:54,408 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:54,408 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 20:08:54,408 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 20:08:54,408 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:54,409 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:54,409 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:54,409 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:54,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:54,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:54,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:54,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:54,631 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:54,631 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:54,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 20:08:55,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:08:55,976 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:08:55,977 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 20:08:55,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/5efff0a5d/11570bfe696840cb871ced20725c03b6/FLAG161b718ca [2024-09-20 20:08:56,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/5efff0a5d/11570bfe696840cb871ced20725c03b6 [2024-09-20 20:08:56,394 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:08:56,395 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:08:56,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-20 20:08:56,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:08:56,432 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:08:56,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:56,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:08:56,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:08:56,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:56" (1/2) ... [2024-09-20 20:08:56,438 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b744173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:08:56" (1/2) ... [2024-09-20 20:08:56,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@138a2d94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:56" (2/2) ... [2024-09-20 20:08:56,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b744173 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:56" (2/2) ... [2024-09-20 20:08:56,447 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:08:56,447 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-20 20:08:56,447 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 20:08:56,447 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 20:08:56,462 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:08:56,610 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-20 20:08:56,620 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-20 20:08:56,621 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-20 20:08:56,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:56,631 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 20:08:56,649 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-20 20:08:56,651 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-20 20:08:56,653 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-20 20:08:56,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:08:56,690 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:08:56,690 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:08:56 WrapperNode [2024-09-20 20:08:56,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:08:56,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:08:56,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:08:56,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:08:56,702 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,702 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,707 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,728 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 20:08:56,728 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,728 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,733 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,734 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,735 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,736 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,737 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:08:56,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:08:56,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:08:56,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:08:56,739 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 20.09 08:08:56" (1/1) ... [2024-09-20 20:08:56,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:56,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:08:56,761 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) [2024-09-20 20:08:56,762 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 [2024-09-20 20:08:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:08:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:08:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:08:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:08:56,793 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 20:08:56,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:08:56,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-20 20:08:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-20 20:08:56,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:08:56,850 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:08:56,851 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:08:56,948 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:08:56,973 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:08:56,973 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:08:56,973 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:56 BoogieIcfgContainer [2024-09-20 20:08:56,973 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:08:56,974 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:08:56,974 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:08:56,976 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:08:56,976 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:08:56" (1/4) ... [2024-09-20 20:08:56,977 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@743b2999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,977 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:08:56" (2/4) ... [2024-09-20 20:08:56,978 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@743b2999 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,978 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 20.09 08:08:56" (3/4) ... [2024-09-20 20:08:56,979 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@743b2999 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:08:56, skipping insertion in model container [2024-09-20 20:08:56,979 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:08:56" (4/4) ... [2024-09-20 20:08:56,980 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-20 20:08:56,983 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:08:56,984 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 20:08:56,984 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 20:08:56,984 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 20:08:56,984 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 20:08:56,984 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 20:08:56,985 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-20 20:08:56,985 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-20 20:08:57,015 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 20:08:57,015 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:57,016 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:57,016 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:57,017 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:57,019 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,069 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-20 20:08:57,070 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,070 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:57,070 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:57,073 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:57,073 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-20 20:08:57,087 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 20:08:57,087 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:57,087 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:57,087 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:57,087 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:57,088 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,113 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-20 20:08:57,113 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,114 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:57,114 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:57,114 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:57,114 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-20 20:08:57,125 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-20 20:08:57,126 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:57,126 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:57,126 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:57,126 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:57,127 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,146 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-20 20:08:57,150 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,150 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:57,151 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:57,151 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:57,151 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-20 20:08:57,159 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:08:57,162 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:08:57,162 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:08:57,162 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:08:57,162 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:08:57,162 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,167 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-20 20:08:57,168 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:08:57,168 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:08:57,169 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:08:57,169 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:08:57,169 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 20:08:57,170 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 20:08:57,175 INFO L158 Benchmark]: Toolchain (without parser) took 742.28ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 60.4MB in the beginning and 102.4MB in the end (delta: -42.0MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:57,176 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:57,176 INFO L158 Benchmark]: Witness Parser took 0.08ms. Allocated memory is still 130.0MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:08:57,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.16ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 60.2MB in the beginning and 143.1MB in the end (delta: -82.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-09-20 20:08:57,178 INFO L158 Benchmark]: Boogie Preprocessor took 45.96ms. Allocated memory is still 176.2MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:08:57,178 INFO L158 Benchmark]: RCFGBuilder took 235.17ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 127.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:08:57,179 INFO L158 Benchmark]: Referee took 200.13ms. Allocated memory is still 176.2MB. Free memory was 127.3MB in the beginning and 102.4MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-09-20 20:08:57,181 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory is still 99.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.08ms. Allocated memory is still 130.0MB. Free memory is still 62.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.16ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 60.2MB in the beginning and 143.1MB in the end (delta: -82.9MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.96ms. Allocated memory is still 176.2MB. Free memory was 143.1MB in the beginning and 141.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 235.17ms. Allocated memory is still 176.2MB. Free memory was 141.0MB in the beginning and 127.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 200.13ms. Allocated memory is still 176.2MB. Free memory was 127.3MB in the beginning and 102.4MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:08:57,204 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/loop-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.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-tmp.dk.referee-eval-ca4ee3d-m [2024-09-20 20:08:58,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 20:08:59,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 20:08:59,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 20:08:59,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 20:08:59,060 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 20:08:59,062 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 20:08:59,062 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 20:08:59,063 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 20:08:59,064 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 20:08:59,064 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 20:08:59,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 20:08:59,065 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 20:08:59,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 20:08:59,068 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 20:08:59,068 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 20:08:59,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 20:08:59,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 20:08:59,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 20:08:59,069 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 20:08:59,070 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 20:08:59,070 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 20:08:59,070 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 20:08:59,070 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 20:08:59,070 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 20:08:59,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:08:59,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 20:08:59,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 20:08:59,072 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 20:08:59,072 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 20:08:59,072 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 20:08:59,074 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 20:08:59,074 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 20:08:59,074 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 20:08:59,075 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 20:08:59,075 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 20:08:59,075 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 20:08:59,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 20:08:59,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 20:08:59,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 20:08:59,364 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 20:08:59,364 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 20:08:59,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 20:09:00,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 20:09:00,834 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 20:09:00,835 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-20 20:09:00,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f82f3251c/3ad73216ea824495b764fc0bc5ba3e3d/FLAG9e36f0b0d [2024-09-20 20:09:00,858 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f82f3251c/3ad73216ea824495b764fc0bc5ba3e3d [2024-09-20 20:09:00,860 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 20:09:00,860 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 20:09:00,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-20 20:09:00,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 20:09:00,900 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 20:09:00,901 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:00,901 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 20:09:00,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 20:09:00,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:00" (1/2) ... [2024-09-20 20:09:00,907 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720e0ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:00, skipping insertion in model container [2024-09-20 20:09:00,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 08:09:00" (1/2) ... [2024-09-20 20:09:00,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7de057a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 08:09:00, skipping insertion in model container [2024-09-20 20:09:00,910 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:00" (2/2) ... [2024-09-20 20:09:00,911 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720e0ee6 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:00, skipping insertion in model container [2024-09-20 20:09:00,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:00" (2/2) ... [2024-09-20 20:09:00,916 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 20:09:00,918 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 20:09:00,918 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-20 20:09:00,918 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-20 20:09:00,934 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 20:09:01,071 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-20 20:09:01,080 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-20 20:09:01,081 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-20 20:09:01,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:01,102 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 20:09:01,120 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-20 20:09:01,122 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-20 20:09:01,125 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-20 20:09:01,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 20:09:01,166 INFO L204 MainTranslator]: Completed translation [2024-09-20 20:09:01,176 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 08:09:01 WrapperNode [2024-09-20 20:09:01,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 20:09:01,177 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 20:09:01,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 20:09:01,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 20:09:01,199 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,200 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,221 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,242 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 20:09:01,243 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,243 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,253 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,255 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,257 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,257 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,261 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 20:09:01,262 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 20:09:01,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 20:09:01,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 20:09:01,263 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 20.09 08:09:01" (1/1) ... [2024-09-20 20:09:01,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 20:09:01,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 20:09:01,292 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) [2024-09-20 20:09:01,295 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 [2024-09-20 20:09:01,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 20:09:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 20:09:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 20:09:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 20:09:01,326 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 20:09:01,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 20:09:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-20 20:09:01,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 20:09:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-20 20:09:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-20 20:09:01,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 20:09:01,395 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 20:09:01,397 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 20:09:01,531 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 20:09:01,565 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 20:09:01,566 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 20:09:01,566 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:01 BoogieIcfgContainer [2024-09-20 20:09:01,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 20:09:01,566 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 20:09:01,567 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 20:09:01,569 INFO L274 PluginConnector]: Referee initialized [2024-09-20 20:09:01,569 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 08:09:00" (1/4) ... [2024-09-20 20:09:01,570 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344f6104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 08:09:01, skipping insertion in model container [2024-09-20 20:09:01,571 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 08:09:00" (2/4) ... [2024-09-20 20:09:01,571 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344f6104 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:01, skipping insertion in model container [2024-09-20 20:09:01,571 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 20.09 08:09:01" (3/4) ... [2024-09-20 20:09:01,571 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@344f6104 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 08:09:01, skipping insertion in model container [2024-09-20 20:09:01,571 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 08:09:01" (4/4) ... [2024-09-20 20:09:01,572 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-20 20:09:01,575 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 20:09:01,575 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 20:09:01,575 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-20 20:09:01,575 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 20:09:01,576 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-20 20:09:01,576 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-20 20:09:01,576 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-20 20:09:01,576 INFO L131 InvariantChecker]: Will check 6 loop-free subgraphs from procedure entry to error location [2024-09-20 20:09:01,614 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 20:09:01,615 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:01,618 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:01,619 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:01,619 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:01,630 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,704 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-20 20:09:01,705 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,705 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:01,706 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:01,707 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:01,707 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-20 20:09:01,723 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-20 20:09:01,725 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:01,725 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:01,725 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:01,725 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:01,725 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,755 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-20 20:09:01,755 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,756 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:01,757 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:01,757 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:01,757 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-20 20:09:01,767 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-20 20:09:01,768 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:01,768 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:01,768 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:01,768 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:01,768 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,792 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-20 20:09:01,793 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,793 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:01,793 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:01,793 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:01,793 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-20 20:09:01,801 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 20:09:01,803 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 20:09:01,803 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 20:09:01,803 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 20:09:01,803 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 20:09:01,804 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,808 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-20 20:09:01,809 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 20:09:01,809 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 20:09:01,809 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 20:09:01,810 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 20:09:01,810 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-20 20:09:01,810 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception: java.lang.AssertionError: Either subgraph not acyclic or there is a bug at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.(InvariantChecker.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.(RefereeStarter.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-09-20 20:09:01,815 INFO L158 Benchmark]: Toolchain (without parser) took 914.53ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 46.9MB in the beginning and 46.8MB in the end (delta: 132.8kB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2024-09-20 20:09:01,815 INFO L158 Benchmark]: CDTParser took 0.79ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:01,815 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 20:09:01,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.45ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 51.5MB in the end (delta: -4.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-09-20 20:09:01,816 INFO L158 Benchmark]: Boogie Preprocessor took 84.07ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 49.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 20:09:01,817 INFO L158 Benchmark]: RCFGBuilder took 304.36ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 35.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 20:09:01,818 INFO L158 Benchmark]: Referee took 247.07ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 46.8MB in the end (delta: -11.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2024-09-20 20:09:01,819 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79ms. Allocated memory is still 71.3MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 71.3MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.45ms. Allocated memory is still 71.3MB. Free memory was 46.7MB in the beginning and 51.5MB in the end (delta: -4.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.07ms. Allocated memory is still 71.3MB. Free memory was 51.5MB in the beginning and 49.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.36ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 35.0MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 247.07ms. Allocated memory was 71.3MB in the beginning and 94.4MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 46.8MB in the end (delta: -11.8MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 20:09:01,843 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 Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug