./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/gj2007.c.i.p+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6908dde5 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-lit/gj2007.c.i.p+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gj2007.c.i.p+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-6908dde-m [2024-09-25 00:27:15,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:15,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:15,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:15,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:16,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:16,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:16,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:16,011 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:16,023 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:16,023 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:16,023 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:16,024 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:16,024 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:16,024 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:16,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:16,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:16,025 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:16,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:16,025 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:16,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:16,026 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:16,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:16,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:16,027 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:16,027 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:16,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:16,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:16,028 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:16,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:16,028 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:16,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:16,029 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:16,029 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:16,029 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:16,030 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:16,030 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:16,030 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:16,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:16,030 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:16,031 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:16,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:16,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:16,035 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:16,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:16,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:16,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:16,213 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:16,214 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:16,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gj2007.c.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 00:27:16,259 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:16,259 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:16,259 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:17,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:18,080 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:18,080 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:18,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/b6c050791/2bac28cd2ff1425d931907f90a096133/FLAGbdd37bac9 [2024-09-25 00:27:18,447 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/b6c050791/2bac28cd2ff1425d931907f90a096133 [2024-09-25 00:27:18,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:18,449 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:18,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:18,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:18,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:18,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:16" (1/2) ... [2024-09-25 00:27:18,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d55754a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:18, skipping insertion in model container [2024-09-25 00:27:18,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:16" (1/2) ... [2024-09-25 00:27:18,463 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ca2e31d and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:18, skipping insertion in model container [2024-09-25 00:27:18,463 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:18" (2/2) ... [2024-09-25 00:27:18,464 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d55754a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18, skipping insertion in model container [2024-09-25 00:27:18,464 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:18" (2/2) ... [2024-09-25 00:27:18,472 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:18,474 INFO L1541 ArrayList]: Location invariant before [L59-L129] (((main__x <= 7) && (main__y == 50)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:18,474 INFO L1541 ArrayList]: Location invariant before [L53-L141] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 6)) [2024-09-25 00:27:18,474 INFO L1541 ArrayList]: Location invariant before [L29-L189] (((main__y == 50) && (main__x <= 2)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:18,475 INFO L1541 ArrayList]: Location invariant before [L35-L177] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 3)) [2024-09-25 00:27:18,478 INFO L1541 ArrayList]: Location invariant before [L23-L201] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 1)) [2024-09-25 00:27:18,478 INFO L1541 ArrayList]: Location invariant before [L72-L105] (((((((((((((((((((((((((((((((((((((((((((((((((((((89 == main__y) && (89 == main__x)) && (\old(__return_720) == __return_720)) || (((53 == main__y) && (53 == main__x)) && (\old(__return_720) == __return_720))) || (((71 == main__y) && (\old(__return_720) == __return_720)) && (71 == main__x))) || (((79 == main__x) && (79 == main__y)) && (\old(__return_720) == __return_720))) || (((88 == main__y) && (\old(__return_720) == __return_720)) && (88 == main__x))) || (((81 == main__y) && (\old(__return_720) == __return_720)) && (81 == main__x))) || (((100 == main__y) && (100 <= main__x)) && (\old(__return_720) == __return_720))) || (((65 == main__y) && (\old(__return_720) == __return_720)) && (65 == main__x))) || (((main__y == 50) && (main__x <= 50)) && (\old(__return_720) == __return_720))) || (((52 == main__y) && (\old(__return_720) == __return_720)) && (52 == main__x))) || (((74 == main__x) && (\old(__return_720) == __return_720)) && (74 == main__y))) || (((64 == main__x) && (64 == main__y)) && (\old(__return_720) == __return_720))) || (((\old(__return_720) == __return_720) && (main__x == 93)) && (main__y == 93))) || (((\old(__return_720) == __return_720) && (main__x == 80)) && (main__y == 80))) || (((main__y == 86) && (\old(__return_720) == __return_720)) && (main__x == 86))) || (((main__x == 96) && (main__y == 96)) && (\old(__return_720) == __return_720))) || (((87 == main__x) && (\old(__return_720) == __return_720)) && (87 == main__y))) || (((90 == main__x) && (\old(__return_720) == __return_720)) && (90 == main__y))) || (((\old(__return_720) == __return_720) && (92 == main__y)) && (92 == main__x))) || (((60 == main__x) && (60 == main__y)) && (\old(__return_720) == __return_720))) || (((63 == main__x) && (63 == main__y)) && (\old(__return_720) == __return_720))) || (((98 == main__x) && (98 == main__y)) && (\old(__return_720) == __return_720))) || (((59 == main__y) && (\old(__return_720) == __return_720)) && (59 == main__x))) || (((72 == main__x) && (72 == main__y)) && (\old(__return_720) == __return_720))) || (((85 == main__y) && (\old(__return_720) == __return_720)) && (85 == main__x))) || (((73 == main__x) && (\old(__return_720) == __return_720)) && (73 == main__y))) || (((97 == main__x) && (\old(__return_720) == __return_720)) && (97 == main__y))) || (((main__x == 83) && (\old(__return_720) == __return_720)) && (main__y == 83))) || (((main__y == 54) && (main__x == 54)) && (\old(__return_720) == __return_720))) || (((91 == main__y) && (91 == main__x)) && (\old(__return_720) == __return_720))) || (((main__x == 61) && (main__y == 61)) && (\old(__return_720) == __return_720))) || (((58 == main__y) && (\old(__return_720) == __return_720)) && (58 == main__x))) || (((69 == main__y) && (\old(__return_720) == __return_720)) && (69 == main__x))) || (((95 == main__y) && (\old(__return_720) == __return_720)) && (95 == main__x))) || (((56 == main__x) && (\old(__return_720) == __return_720)) && (56 == main__y))) || (((55 == main__x) && (\old(__return_720) == __return_720)) && (55 == main__y))) || (((main__x == 75) && (main__y == 75)) && (\old(__return_720) == __return_720))) || (((68 == main__x) && (\old(__return_720) == __return_720)) && (68 == main__y))) || (((\old(__return_720) == __return_720) && (57 == main__x)) && (57 == main__y))) || (((51 == main__y) && (51 == main__x)) && (\old(__return_720) == __return_720))) || (((66 == main__y) && (66 == main__x)) && (\old(__return_720) == __return_720))) || (((main__y == 99) && (main__x == 99)) && (\old(__return_720) == __return_720))) || (((84 == main__x) && (\old(__return_720) == __return_720)) && (84 == main__y))) || (((67 == main__x) && (67 == main__y)) && (\old(__return_720) == __return_720))) || (((62 == main__x) && (62 == main__y)) && (\old(__return_720) == __return_720))) || (((70 == main__x) && (\old(__return_720) == __return_720)) && (70 == main__y))) || (((94 == main__y) && (94 == main__x)) && (\old(__return_720) == __return_720))) || (((76 == main__y) && (76 == main__x)) && (\old(__return_720) == __return_720))) || (((78 == main__y) && (\old(__return_720) == __return_720)) && (78 == main__x))) || (((82 == main__x) && (\old(__return_720) == __return_720)) && (82 == main__y))) || (((\old(__return_720) == __return_720) && (77 == main__x)) && (77 == main__y))) [2024-09-25 00:27:18,478 INFO L1541 ArrayList]: Location invariant before [L65-L117] (((main__x <= 8) && (main__y == 50)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:18,479 INFO L1541 ArrayList]: Location invariant before [L47-L153] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 5)) [2024-09-25 00:27:18,479 INFO L1541 ArrayList]: Location invariant before [L41-L165] (((main__y == 50) && (main__x <= 4)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:18,517 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:18,705 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-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2024-09-25 00:27:18,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:18,733 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:18,750 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-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-25 00:27:18,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:18,843 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:18,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18 WrapperNode [2024-09-25 00:27:18,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:18,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:18,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:18,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:18,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,889 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]. [2024-09-25 00:27:18,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,900 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,903 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,905 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,912 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:18,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:18,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:18,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:18,919 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (1/1) ... [2024-09-25 00:27:18,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:18,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:18,951 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) [2024-09-25 00:27:18,954 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 [2024-09-25 00:27:18,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:18,994 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:18,995 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:18,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:18,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:19,054 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:19,056 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:19,312 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:19,360 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:19,362 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:19,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:19 BoogieIcfgContainer [2024-09-25 00:27:19,363 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:19,364 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:19,364 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:19,365 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:19,366 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:16" (1/4) ... [2024-09-25 00:27:19,366 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54ed2c40 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:19, skipping insertion in model container [2024-09-25 00:27:19,366 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:18" (2/4) ... [2024-09-25 00:27:19,368 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54ed2c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:19, skipping insertion in model container [2024-09-25 00:27:19,368 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:18" (3/4) ... [2024-09-25 00:27:19,368 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@54ed2c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:19, skipping insertion in model container [2024-09-25 00:27:19,368 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:19" (4/4) ... [2024-09-25 00:27:19,370 INFO L79 RefereeObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:19,374 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:19,374 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 13 edges. [2024-09-25 00:27:19,375 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 21 edges. [2024-09-25 00:27:19,375 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 17 edges. [2024-09-25 00:27:19,375 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 25 edges. [2024-09-25 00:27:19,376 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr9ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 43 edges. [2024-09-25 00:27:19,376 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 29 edges. [2024-09-25 00:27:19,377 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 00:27:19,377 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr7ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 33 edges. [2024-09-25 00:27:19,378 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr8ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 41 edges. [2024-09-25 00:27:19,378 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 9 edges. [2024-09-25 00:27:19,378 INFO L131 InvariantChecker]: Will check 10 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:19,431 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 13 edges [2024-09-25 00:27:19,433 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:19,434 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:19,435 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:19,436 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:19,438 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,499 INFO L101 BaseMinimizeStates]: Removed 40 edges and 9 locations by large block encoding [2024-09-25 00:27:19,500 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,500 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:19,500 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:19,501 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:19,506 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:19,524 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:19,554 INFO L314 BlockEncoder]: Initial Icfg 17 locations, 21 edges [2024-09-25 00:27:19,554 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:19,555 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:19,555 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:19,555 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:19,555 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,609 INFO L101 BaseMinimizeStates]: Removed 144 edges and 15 locations by large block encoding [2024-09-25 00:27:19,610 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,610 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:19,610 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:19,610 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:19,613 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:19,616 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:19,661 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 17 edges [2024-09-25 00:27:19,666 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:19,667 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:19,667 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:19,667 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:19,667 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,750 INFO L101 BaseMinimizeStates]: Removed 76 edges and 12 locations by large block encoding [2024-09-25 00:27:19,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,750 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:19,750 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:19,750 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:19,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:19,759 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:19,774 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 25 edges [2024-09-25 00:27:19,774 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:19,775 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:19,775 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:19,775 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:19,775 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,838 INFO L101 BaseMinimizeStates]: Removed 276 edges and 18 locations by large block encoding [2024-09-25 00:27:19,839 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:19,839 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:19,840 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:19,840 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:19,845 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:19,851 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr5ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:19,870 INFO L314 BlockEncoder]: Initial Icfg 33 locations, 43 edges [2024-09-25 00:27:19,870 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:19,870 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:19,871 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:19,871 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:19,871 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,003 INFO L101 BaseMinimizeStates]: Removed 2089 edges and 30 locations by large block encoding [2024-09-25 00:27:21,004 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,005 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:21,005 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:21,006 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:21,075 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-25 00:27:21,082 INFO L314 BlockEncoder]: Initial Icfg 23 locations, 29 edges [2024-09-25 00:27:21,083 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:21,083 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:21,083 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:21,083 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:21,083 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,147 INFO L101 BaseMinimizeStates]: Removed 536 edges and 21 locations by large block encoding [2024-09-25 00:27:21,148 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,149 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:21,149 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:21,149 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:21,194 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:21,196 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:21,201 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:27:21,201 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:21,202 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:21,202 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:21,202 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:21,202 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,203 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:21,204 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,204 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:21,204 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:21,204 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:21,205 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:21,206 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:21,212 INFO L314 BlockEncoder]: Initial Icfg 26 locations, 33 edges [2024-09-25 00:27:21,212 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:21,212 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:21,212 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:21,212 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:21,212 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,313 INFO L101 BaseMinimizeStates]: Removed 1052 edges and 24 locations by large block encoding [2024-09-25 00:27:21,314 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:21,314 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:21,314 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:21,315 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:21,325 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:21,327 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr7ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:21,334 INFO L314 BlockEncoder]: Initial Icfg 31 locations, 41 edges [2024-09-25 00:27:21,334 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:21,334 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:21,334 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:21,334 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:21,334 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,685 INFO L101 BaseMinimizeStates]: Removed 2088 edges and 28 locations by large block encoding [2024-09-25 00:27:22,687 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,687 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:22,688 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:22,688 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:22,752 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:22,753 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) [2024-09-25 00:27:22,757 INFO L158 Benchmark]: Toolchain (without parser) took 4307.33ms. Allocated memory was 234.9MB in the beginning and 645.9MB in the end (delta: 411.0MB). Free memory was 163.7MB in the beginning and 434.4MB in the end (delta: -270.8MB). Peak memory consumption was 363.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,758 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,758 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 136.3MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.67ms. Allocated memory is still 234.9MB. Free memory was 163.7MB in the beginning and 146.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,759 INFO L158 Benchmark]: Boogie Preprocessor took 67.89ms. Allocated memory is still 234.9MB. Free memory was 146.9MB in the beginning and 144.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,759 INFO L158 Benchmark]: RCFGBuilder took 445.57ms. Allocated memory is still 234.9MB. Free memory was 144.8MB in the beginning and 115.4MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,760 INFO L158 Benchmark]: Referee took 3391.77ms. Allocated memory was 234.9MB in the beginning and 645.9MB in the end (delta: 411.0MB). Free memory was 115.4MB in the beginning and 434.4MB in the end (delta: -319.0MB). Peak memory consumption was 315.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,761 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: * Witness Parser took 0.14ms. Allocated memory is still 136.3MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 136.3MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.67ms. Allocated memory is still 234.9MB. Free memory was 163.7MB in the beginning and 146.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.89ms. Allocated memory is still 234.9MB. Free memory was 146.9MB in the beginning and 144.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 445.57ms. Allocated memory is still 234.9MB. Free memory was 144.8MB in the beginning and 115.4MB in the end (delta: 29.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Referee took 3391.77ms. Allocated memory was 234.9MB in the beginning and 645.9MB in the end (delta: 411.0MB). Free memory was 115.4MB in the beginning and 434.4MB in the end (delta: -319.0MB). Peak memory consumption was 315.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:22,783 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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-lit/gj2007.c.i.p+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/gj2007.c.i.p+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-6908dde-m [2024-09-25 00:27:25,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:25,179 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:25,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:25,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:25,212 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:25,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:25,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:25,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:25,215 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:25,216 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:25,216 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:25,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:25,217 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:25,220 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:25,220 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:25,220 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:25,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:25,221 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:25,221 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:25,221 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:25,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:25,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:25,222 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:25,225 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:25,225 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:25,226 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:25,226 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:25,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:25,226 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:25,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:25,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:25,227 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:25,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:25,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:25,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:25,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:25,228 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:25,228 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:25,228 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:25,228 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:25,229 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:25,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:25,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:25,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:25,230 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:25,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:25,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:25,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:25,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:25,555 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:25,555 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:25,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:26,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:27,141 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:27,142 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:27,151 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d4e9aca43/0431ced65cad4c61b6d92da39aec98c9/FLAGcbc443573 [2024-09-25 00:27:27,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d4e9aca43/0431ced65cad4c61b6d92da39aec98c9 [2024-09-25 00:27:27,168 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:27,169 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:27,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gj2007.c.i.p+lhb-reducer.yml/witness-2.1.yml [2024-09-25 00:27:27,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:27,228 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:27,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:27,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:27,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (1/2) ... [2024-09-25 00:27:27,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611e244a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (1/2) ... [2024-09-25 00:27:27,241 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14e52afd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@611e244a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27, skipping insertion in model container [2024-09-25 00:27:27,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,260 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:27,260 INFO L1541 ArrayList]: Location invariant before [L47-L153] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 5)) [2024-09-25 00:27:27,260 INFO L1541 ArrayList]: Location invariant before [L53-L141] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 6)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L23-L201] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 1)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L41-L165] (((main__y == 50) && (main__x <= 4)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L65-L117] (((main__x <= 8) && (main__y == 50)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L35-L177] (((main__y == 50) && (\old(__return_720) == __return_720)) && (main__x <= 3)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L72-L105] (((((((((((((((((((((((((((((((((((((((((((((((((((((89 == main__y) && (89 == main__x)) && (\old(__return_720) == __return_720)) || (((53 == main__y) && (53 == main__x)) && (\old(__return_720) == __return_720))) || (((71 == main__y) && (\old(__return_720) == __return_720)) && (71 == main__x))) || (((79 == main__x) && (79 == main__y)) && (\old(__return_720) == __return_720))) || (((88 == main__y) && (\old(__return_720) == __return_720)) && (88 == main__x))) || (((81 == main__y) && (\old(__return_720) == __return_720)) && (81 == main__x))) || (((100 == main__y) && (100 <= main__x)) && (\old(__return_720) == __return_720))) || (((65 == main__y) && (\old(__return_720) == __return_720)) && (65 == main__x))) || (((main__y == 50) && (main__x <= 50)) && (\old(__return_720) == __return_720))) || (((52 == main__y) && (\old(__return_720) == __return_720)) && (52 == main__x))) || (((74 == main__x) && (\old(__return_720) == __return_720)) && (74 == main__y))) || (((64 == main__x) && (64 == main__y)) && (\old(__return_720) == __return_720))) || (((\old(__return_720) == __return_720) && (main__x == 93)) && (main__y == 93))) || (((\old(__return_720) == __return_720) && (main__x == 80)) && (main__y == 80))) || (((main__y == 86) && (\old(__return_720) == __return_720)) && (main__x == 86))) || (((main__x == 96) && (main__y == 96)) && (\old(__return_720) == __return_720))) || (((87 == main__x) && (\old(__return_720) == __return_720)) && (87 == main__y))) || (((90 == main__x) && (\old(__return_720) == __return_720)) && (90 == main__y))) || (((\old(__return_720) == __return_720) && (92 == main__y)) && (92 == main__x))) || (((60 == main__x) && (60 == main__y)) && (\old(__return_720) == __return_720))) || (((63 == main__x) && (63 == main__y)) && (\old(__return_720) == __return_720))) || (((98 == main__x) && (98 == main__y)) && (\old(__return_720) == __return_720))) || (((59 == main__y) && (\old(__return_720) == __return_720)) && (59 == main__x))) || (((72 == main__x) && (72 == main__y)) && (\old(__return_720) == __return_720))) || (((85 == main__y) && (\old(__return_720) == __return_720)) && (85 == main__x))) || (((73 == main__x) && (\old(__return_720) == __return_720)) && (73 == main__y))) || (((97 == main__x) && (\old(__return_720) == __return_720)) && (97 == main__y))) || (((main__x == 83) && (\old(__return_720) == __return_720)) && (main__y == 83))) || (((main__y == 54) && (main__x == 54)) && (\old(__return_720) == __return_720))) || (((91 == main__y) && (91 == main__x)) && (\old(__return_720) == __return_720))) || (((main__x == 61) && (main__y == 61)) && (\old(__return_720) == __return_720))) || (((58 == main__y) && (\old(__return_720) == __return_720)) && (58 == main__x))) || (((69 == main__y) && (\old(__return_720) == __return_720)) && (69 == main__x))) || (((95 == main__y) && (\old(__return_720) == __return_720)) && (95 == main__x))) || (((56 == main__x) && (\old(__return_720) == __return_720)) && (56 == main__y))) || (((55 == main__x) && (\old(__return_720) == __return_720)) && (55 == main__y))) || (((main__x == 75) && (main__y == 75)) && (\old(__return_720) == __return_720))) || (((68 == main__x) && (\old(__return_720) == __return_720)) && (68 == main__y))) || (((\old(__return_720) == __return_720) && (57 == main__x)) && (57 == main__y))) || (((51 == main__y) && (51 == main__x)) && (\old(__return_720) == __return_720))) || (((66 == main__y) && (66 == main__x)) && (\old(__return_720) == __return_720))) || (((main__y == 99) && (main__x == 99)) && (\old(__return_720) == __return_720))) || (((84 == main__x) && (\old(__return_720) == __return_720)) && (84 == main__y))) || (((67 == main__x) && (67 == main__y)) && (\old(__return_720) == __return_720))) || (((62 == main__x) && (62 == main__y)) && (\old(__return_720) == __return_720))) || (((70 == main__x) && (\old(__return_720) == __return_720)) && (70 == main__y))) || (((94 == main__y) && (94 == main__x)) && (\old(__return_720) == __return_720))) || (((76 == main__y) && (76 == main__x)) && (\old(__return_720) == __return_720))) || (((78 == main__y) && (\old(__return_720) == __return_720)) && (78 == main__x))) || (((82 == main__x) && (\old(__return_720) == __return_720)) && (82 == main__y))) || (((\old(__return_720) == __return_720) && (77 == main__x)) && (77 == main__y))) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L29-L189] (((main__y == 50) && (main__x <= 2)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:27,261 INFO L1541 ArrayList]: Location invariant before [L59-L129] (((main__x <= 7) && (main__y == 50)) && (\old(__return_720) == __return_720)) [2024-09-25 00:27:27,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:27,443 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-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] [2024-09-25 00:27:27,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,475 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:27,491 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-lit/gj2007.c.i.p+lhb-reducer.c[1613,1626] Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-25 00:27:27,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,578 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:27,579 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:27 WrapperNode [2024-09-25 00:27:27,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,580 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,580 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:27,580 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:27,591 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,592 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,601 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,633 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]. [2024-09-25 00:27:27,633 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,634 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,649 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,651 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,654 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,655 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,661 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:27,661 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:27,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:27,662 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 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:27,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:27,693 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) [2024-09-25 00:27:27,696 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 [2024-09-25 00:27:27,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:27,739 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:27,739 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:27,809 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:27,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:28,214 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:28,284 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:28,285 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:28,285 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28 BoogieIcfgContainer [2024-09-25 00:27:28,286 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:28,287 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:28,287 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:28,287 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:28,288 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:27" (1/4) ... [2024-09-25 00:27:28,288 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b01e9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,289 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 12:27:27" (2/4) ... [2024-09-25 00:27:28,289 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b01e9f2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,289 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 25.09 12:27:27" (3/4) ... [2024-09-25 00:27:28,289 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@b01e9f2 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:28, skipping insertion in model container [2024-09-25 00:27:28,290 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28" (4/4) ... [2024-09-25 00:27:28,291 INFO L79 RefereeObserver]: Analyzing ICFG gj2007.c.i.p+lhb-reducer.c [2024-09-25 00:27:28,295 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:28,295 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 13 edges. [2024-09-25 00:27:28,296 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 21 edges. [2024-09-25 00:27:28,296 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 17 edges. [2024-09-25 00:27:28,296 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 25 edges. [2024-09-25 00:27:28,296 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr9ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 43 edges. [2024-09-25 00:27:28,297 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 29 edges. [2024-09-25 00:27:28,297 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 00:27:28,297 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr7ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 33 edges. [2024-09-25 00:27:28,298 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr8ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 41 edges. [2024-09-25 00:27:28,298 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 9 edges. [2024-09-25 00:27:28,298 INFO L131 InvariantChecker]: Will check 10 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:28,347 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 13 edges [2024-09-25 00:27:28,348 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,349 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,349 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,350 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,352 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,414 INFO L101 BaseMinimizeStates]: Removed 40 edges and 9 locations by large block encoding [2024-09-25 00:27:28,415 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,415 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,416 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,417 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,421 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:28,438 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:28,461 INFO L314 BlockEncoder]: Initial Icfg 17 locations, 21 edges [2024-09-25 00:27:28,461 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,461 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,461 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,462 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,462 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,579 INFO L101 BaseMinimizeStates]: Removed 144 edges and 15 locations by large block encoding [2024-09-25 00:27:28,580 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,580 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,580 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,580 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,584 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:28,587 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:28,606 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 17 edges [2024-09-25 00:27:28,607 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,607 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,607 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,607 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,607 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,645 INFO L101 BaseMinimizeStates]: Removed 76 edges and 12 locations by large block encoding [2024-09-25 00:27:28,646 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,646 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,646 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,646 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,648 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:28,651 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr3ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:28,665 INFO L314 BlockEncoder]: Initial Icfg 20 locations, 25 edges [2024-09-25 00:27:28,665 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,666 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,666 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,666 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,666 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,751 INFO L101 BaseMinimizeStates]: Removed 276 edges and 18 locations by large block encoding [2024-09-25 00:27:28,751 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,752 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,752 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,752 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,756 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:28,759 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr5ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:28,775 INFO L314 BlockEncoder]: Initial Icfg 33 locations, 43 edges [2024-09-25 00:27:28,775 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,775 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,775 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,775 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,776 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,619 INFO L101 BaseMinimizeStates]: Removed 2089 edges and 30 locations by large block encoding [2024-09-25 00:27:30,620 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,621 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:30,621 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:30,622 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:30,699 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-25 00:27:30,713 INFO L314 BlockEncoder]: Initial Icfg 23 locations, 29 edges [2024-09-25 00:27:30,713 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:30,714 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:30,714 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:30,714 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:30,714 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,835 INFO L101 BaseMinimizeStates]: Removed 536 edges and 21 locations by large block encoding [2024-09-25 00:27:30,836 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,836 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:30,836 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:30,837 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:30,844 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:30,848 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr6ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:30,858 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 00:27:30,858 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:30,858 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:30,859 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:30,859 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:30,859 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,861 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:30,861 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:30,861 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:30,862 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:30,862 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:30,862 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:30,865 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:30,876 INFO L314 BlockEncoder]: Initial Icfg 26 locations, 33 edges [2024-09-25 00:27:30,876 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:30,876 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:30,876 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:30,877 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:30,877 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:31,121 INFO L101 BaseMinimizeStates]: Removed 1052 edges and 24 locations by large block encoding [2024-09-25 00:27:31,122 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:31,123 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:31,123 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:31,124 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:31,149 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-25 00:27:31,153 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr7ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-25 00:27:31,182 INFO L314 BlockEncoder]: Initial Icfg 31 locations, 41 edges [2024-09-25 00:27:31,182 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:31,182 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:31,183 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:31,183 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:31,183 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:33,639 INFO L101 BaseMinimizeStates]: Removed 2088 edges and 28 locations by large block encoding [2024-09-25 00:27:33,641 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:33,641 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:33,642 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:33,642 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:33,731 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:33,735 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) [2024-09-25 00:27:33,743 INFO L158 Benchmark]: Toolchain (without parser) took 6513.97ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 47.7MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 559.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:33,744 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:33,744 INFO L158 Benchmark]: Witness Parser took 0.59ms. Allocated memory is still 81.8MB. Free memory was 50.0MB in the beginning and 49.8MB in the end (delta: 225.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:33,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.98ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 54.3MB in the end (delta: -6.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-09-25 00:27:33,749 INFO L158 Benchmark]: Boogie Preprocessor took 81.14ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 51.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:33,749 INFO L158 Benchmark]: RCFGBuilder took 624.91ms. Allocated memory is still 81.8MB. Free memory was 51.5MB in the beginning and 39.7MB in the end (delta: 11.9MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2024-09-25 00:27:33,749 INFO L158 Benchmark]: Referee took 5454.96ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 39.7MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 551.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:33,752 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 0.27ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 35.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.59ms. Allocated memory is still 81.8MB. Free memory was 50.0MB in the beginning and 49.8MB in the end (delta: 225.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.98ms. Allocated memory is still 81.8MB. Free memory was 47.5MB in the beginning and 54.3MB in the end (delta: -6.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.14ms. Allocated memory is still 81.8MB. Free memory was 54.3MB in the beginning and 51.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.91ms. Allocated memory is still 81.8MB. Free memory was 51.5MB in the beginning and 39.7MB in the end (delta: 11.9MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Referee took 5454.96ms. Allocated memory was 81.8MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 39.7MB in the beginning and 1.5GB in the end (delta: -1.5GB). Peak memory consumption was 551.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:33,799 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug