./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:45:44,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:45:44,791 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:45:44,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:45:44,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:45:44,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:45:44,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:45:44,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:45:44,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:45:44,824 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:45:44,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:45:44,825 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:45:44,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:45:44,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:45:44,837 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:45:44,840 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:45:44,840 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:45:44,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:45:44,840 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:45:44,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:45:44,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:45:44,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:45:44,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:45:44,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:45:44,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:45:44,843 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:45:44,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:45:44,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:45:44,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:45:44,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:45:44,844 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:45:44,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:45:44,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:45:44,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:44,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:45:44,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:45:44,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:45:44,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:45:44,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:45:44,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:45:44,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:45:44,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:45:44,847 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:45:44,847 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:45:45,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:45:45,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:45:45,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:45:45,065 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:45:45,066 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:45:45,067 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:45:45,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:45:45,111 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:45:45,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-25 11:45:46,293 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:45:46,462 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:45:46,463 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-25 11:45:46,469 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1639a5b15/673d6349154941d6946645d721add1d1/FLAG0c6645426 [2024-09-25 11:45:46,868 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1639a5b15/673d6349154941d6946645d721add1d1 [2024-09-25 11:45:46,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:45:46,870 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:45:46,876 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:46,876 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:45:46,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:45:46,881 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 11:45:45" (1/2) ... [2024-09-25 11:45:46,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3525b44f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:46, skipping insertion in model container [2024-09-25 11:45:46,881 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 11:45:45" (1/2) ... [2024-09-25 11:45:46,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@73d51e23 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:46, skipping insertion in model container [2024-09-25 11:45:46,882 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:46" (2/2) ... [2024-09-25 11:45:46,883 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3525b44f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:46, skipping insertion in model container [2024-09-25 11:45:46,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:46" (2/2) ... [2024-09-25 11:45:46,890 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:45:46,892 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-25 11:45:46,892 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-25 11:45:46,896 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-25 11:45:46,896 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:45:46,911 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:45:47,020 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-25 11:45:47,024 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-25 11:45:47,026 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-25 11:45:47,029 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:47,037 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:45:47,069 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-25 11:45:47,070 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-25 11:45:47,071 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-25 11:45:47,077 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:47,088 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:45:47,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47 WrapperNode [2024-09-25 11:45:47,088 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:47,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:45:47,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:45:47,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:45:47,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,102 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,111 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:45:47,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,114 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,115 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,116 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:45:47,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:45:47,118 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:45:47,118 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:45:47,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (1/1) ... [2024-09-25 11:45:47,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:47,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:45:47,139 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 11:45:47,141 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 11:45:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:45:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:45:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:45:47,170 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:45:47,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:45:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:45:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:45:47,171 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:45:47,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:45:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:45:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:45:47,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:45:47,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:45:47,226 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:45:47,228 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:45:47,326 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:45:47,349 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:45:47,349 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:45:47,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:47 BoogieIcfgContainer [2024-09-25 11:45:47,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:45:47,350 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:45:47,350 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:45:47,351 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:45:47,351 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 11:45:45" (1/4) ... [2024-09-25 11:45:47,351 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27bdefea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:45:47, skipping insertion in model container [2024-09-25 11:45:47,351 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:45:46" (2/4) ... [2024-09-25 11:45:47,351 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27bdefea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:47, skipping insertion in model container [2024-09-25 11:45:47,352 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:47" (3/4) ... [2024-09-25 11:45:47,352 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@27bdefea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:47, skipping insertion in model container [2024-09-25 11:45:47,352 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:47" (4/4) ... [2024-09-25 11:45:47,356 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-25 11:45:47,360 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:45:47,360 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-25 11:45:47,361 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-25 11:45:47,361 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-25 11:45:47,361 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:45:47,361 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-25 11:45:47,362 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr6ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 23 edges. [2024-09-25 11:45:47,362 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-25 11:45:47,362 INFO L131 InvariantChecker]: Will check 7 loop-free subgraphs from procedure entry to error location [2024-09-25 11:45:47,390 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-25 11:45:47,391 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:47,391 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:47,392 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:47,392 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:47,394 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,434 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-25 11:45:47,435 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,435 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:47,436 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:47,436 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:47,438 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-25 11:45:47,445 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-25 11:45:47,446 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:47,446 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:47,446 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:47,446 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:47,446 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,462 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-25 11:45:47,462 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,462 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:47,462 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:47,463 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:47,465 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-25 11:45:47,472 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-25 11:45:47,473 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:47,473 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:47,473 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:47,473 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:47,473 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,487 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-25 11:45:47,487 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,487 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:47,487 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:47,487 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:47,488 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-25 11:45:47,494 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:47,495 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:47,495 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:47,496 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:47,496 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:47,496 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,500 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-25 11:45:47,501 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:47,501 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:47,502 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:47,502 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:47,502 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:45:47,503 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 11:45:47,507 INFO L158 Benchmark]: Toolchain (without parser) took 636.88ms. Allocated memory is still 205.5MB. Free memory was 172.1MB in the beginning and 123.2MB in the end (delta: 48.9MB). Peak memory consumption was 50.9MB. Max. memory is 16.1GB. [2024-09-25 11:45:47,508 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 134.2MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:47,508 INFO L158 Benchmark]: CDTParser took 0.06ms. Allocated memory is still 134.2MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:47,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 205.5MB. Free memory was 176.9MB in the beginning and 163.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 11:45:47,510 INFO L158 Benchmark]: Boogie Preprocessor took 28.95ms. Allocated memory is still 205.5MB. Free memory was 163.4MB in the beginning and 161.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:47,510 INFO L158 Benchmark]: RCFGBuilder took 231.32ms. Allocated memory is still 205.5MB. Free memory was 161.2MB in the beginning and 147.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:47,511 INFO L158 Benchmark]: Referee took 156.26ms. Allocated memory is still 205.5MB. Free memory was 147.5MB in the beginning and 123.2MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:47,513 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 0.13ms. Allocated memory is still 134.2MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.06ms. Allocated memory is still 134.2MB. Free memory is still 107.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 212.31ms. Allocated memory is still 205.5MB. Free memory was 176.9MB in the beginning and 163.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.95ms. Allocated memory is still 205.5MB. Free memory was 163.4MB in the beginning and 161.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 231.32ms. Allocated memory is still 205.5MB. Free memory was 161.2MB in the beginning and 147.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Referee took 156.26ms. Allocated memory is still 205.5MB. Free memory was 147.5MB in the beginning and 123.2MB in the end (delta: 24.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:45:47,535 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/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-invgen/id_build.i.v+lhb-reducer.c ../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:45:49,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:45:49,343 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:45:49,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:45:49,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:45:49,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:45:49,374 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:45:49,374 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:45:49,375 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:45:49,377 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:45:49,378 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:45:49,378 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:45:49,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:45:49,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:45:49,379 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:45:49,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:45:49,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:45:49,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:45:49,382 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:45:49,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:45:49,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:45:49,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:45:49,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:45:49,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:45:49,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:45:49,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:45:49,384 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:45:49,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:45:49,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:45:49,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:49,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:45:49,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:45:49,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:45:49,385 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:45:49,385 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:45:49,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:45:49,387 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:45:49,387 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:45:49,388 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:45:49,388 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:45:49,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:45:49,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:45:49,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:45:49,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:45:49,666 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:45:49,667 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:45:49,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/id_build.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:45:49,707 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:45:49,707 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:45:49,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-25 11:45:51,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:45:51,193 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:45:51,193 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2024-09-25 11:45:51,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0bb46cfbc/8f5759456e61453f8617fff5197c2052/FLAGe16ff56fb [2024-09-25 11:45:51,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0bb46cfbc/8f5759456e61453f8617fff5197c2052 [2024-09-25 11:45:51,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:45:51,214 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:45:51,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:51,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:45:51,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:45:51,222 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 11:45:49" (1/2) ... [2024-09-25 11:45:51,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c3a568e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,223 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 11:45:49" (1/2) ... [2024-09-25 11:45:51,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@61c897cd and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:51" (2/2) ... [2024-09-25 11:45:51,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c3a568e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:45:51" (2/2) ... [2024-09-25 11:45:51,236 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:45:51,237 INFO L1541 ArrayList]: Location invariant before [L23-L101] ((\old(__return_100) == __return_100) && (0 <= main__i)) [2024-09-25 11:45:51,237 INFO L1541 ArrayList]: Location invariant before [L55-L86] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-25 11:45:51,237 INFO L1541 ArrayList]: Location invariant before [L39-L89] (((((long long) main__i + 1) <= main__nlen) && (\old(__return_100) == __return_100)) && (0 <= main__i)) [2024-09-25 11:45:51,237 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:45:51,252 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:45:51,377 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-25 11:45:51,385 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-25 11:45:51,388 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] [2024-09-25 11:45:51,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:51,403 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:45:51,433 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[854,867] [2024-09-25 11:45:51,436 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1096,1109] [2024-09-25 11:45:51,438 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c[1375,1388] Start Parsing Local Start Parsing Local Start Parsing Local [2024-09-25 11:45:51,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:45:51,466 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:45:51,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51 WrapperNode [2024-09-25 11:45:51,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:45:51,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:45:51,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:45:51,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:45:51,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,484 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,494 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-25 11:45:51,495 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,495 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,505 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,508 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,510 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:45:51,511 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:45:51,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:45:51,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:45:51,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (1/1) ... [2024-09-25 11:45:51,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:45:51,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:45:51,540 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 11:45:51,542 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 11:45:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:45:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:45:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:45:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:45:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:45:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:45:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:45:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:45:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:45:51,634 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:45:51,636 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:45:51,771 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:45:51,801 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:45:51,802 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:45:51,802 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:51 BoogieIcfgContainer [2024-09-25 11:45:51,802 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:45:51,803 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:45:51,803 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:45:51,803 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:45:51,804 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 11:45:49" (1/4) ... [2024-09-25 11:45:51,804 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@615d45af and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,804 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:45:51" (2/4) ... [2024-09-25 11:45:51,804 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@615d45af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,805 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:45:51" (3/4) ... [2024-09-25 11:45:51,805 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@615d45af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:45:51, skipping insertion in model container [2024-09-25 11:45:51,805 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:45:51" (4/4) ... [2024-09-25 11:45:51,806 INFO L79 RefereeObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2024-09-25 11:45:51,808 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:45:51,809 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-25 11:45:51,809 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 15 edges. [2024-09-25 11:45:51,809 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr3ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-25 11:45:51,809 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:45:51,810 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr5ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 16 edges. [2024-09-25 11:45:51,810 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr6ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 23 edges. [2024-09-25 11:45:51,810 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-25 11:45:51,810 INFO L131 InvariantChecker]: Will check 7 loop-free subgraphs from procedure entry to error location [2024-09-25 11:45:51,849 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-25 11:45:51,850 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:51,850 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:51,851 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:51,851 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:51,853 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,896 INFO L101 BaseMinimizeStates]: Removed 27 edges and 8 locations by large block encoding [2024-09-25 11:45:51,897 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,897 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:51,897 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:51,898 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:51,898 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 10 edges [2024-09-25 11:45:51,908 INFO L314 BlockEncoder]: Initial Icfg 13 locations, 15 edges [2024-09-25 11:45:51,908 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:51,909 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:51,909 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:51,909 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:51,909 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,934 INFO L101 BaseMinimizeStates]: Removed 24 edges and 8 locations by large block encoding [2024-09-25 11:45:51,934 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,934 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:51,934 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:51,935 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:51,935 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 9 edges [2024-09-25 11:45:51,941 INFO L314 BlockEncoder]: Initial Icfg 14 locations, 16 edges [2024-09-25 11:45:51,942 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:51,942 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:51,942 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:51,942 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:51,943 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,966 INFO L101 BaseMinimizeStates]: Removed 25 edges and 9 locations by large block encoding [2024-09-25 11:45:51,966 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,966 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:51,966 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:51,966 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:51,967 INFO L314 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2024-09-25 11:45:51,972 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-25 11:45:51,972 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:45:51,972 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:45:51,972 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:45:51,972 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:45:51,972 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,976 INFO L101 BaseMinimizeStates]: Removed 7 edges and 2 locations by large block encoding [2024-09-25 11:45:51,977 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:45:51,977 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:45:51,977 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:45:51,977 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:45:51,977 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:45:51,978 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 11:45:51,982 INFO L158 Benchmark]: Toolchain (without parser) took 767.52ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 49.7MB in the beginning and 66.2MB in the end (delta: -16.5MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-09-25 11:45:51,983 INFO L158 Benchmark]: Witness Parser took 0.27ms. Allocated memory is still 71.3MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:51,983 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 71.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:45:51,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.59ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 34.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:51,984 INFO L158 Benchmark]: Boogie Preprocessor took 42.81ms. Allocated memory is still 71.3MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:45:51,986 INFO L158 Benchmark]: RCFGBuilder took 291.69ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 32.8MB in the beginning and 67.6MB in the end (delta: -34.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 11:45:51,986 INFO L158 Benchmark]: Referee took 178.43ms. Allocated memory is still 100.7MB. Free memory was 67.6MB in the beginning and 66.2MB in the end (delta: 1.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2024-09-25 11:45:51,991 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 0.27ms. Allocated memory is still 71.3MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.08ms. Allocated memory is still 71.3MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.59ms. Allocated memory is still 71.3MB. Free memory was 49.5MB in the beginning and 34.9MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.81ms. Allocated memory is still 71.3MB. Free memory was 34.9MB in the beginning and 32.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.69ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 32.8MB in the beginning and 67.6MB in the end (delta: -34.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 178.43ms. Allocated memory is still 100.7MB. Free memory was 67.6MB in the beginning and 66.2MB in the end (delta: 1.4MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:45:52,013 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug