This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:19,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:19,826 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 00:27:19,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:19,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:19,862 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:19,864 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:19,865 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:19,866 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:19,867 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:19,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:19,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:19,868 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:19,869 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:19,869 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:19,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:19,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:19,870 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:19,870 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 00:27:19,871 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:19,871 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:19,871 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:19,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:19,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:19,872 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:19,873 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:19,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:19,873 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:19,874 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:19,874 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:19,874 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:19,875 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:19,875 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:19,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:19,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:19,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:19,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:19,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 00:27:19,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 00:27:19,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:19,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:19,877 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:19,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:19,877 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:20,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:20,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:20,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:20,173 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:20,174 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:20,176 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:21,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:21,872 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:21,873 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:21,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/97f751854/ebce106b892e491d81f14cb344706b27/FLAG423b90dfe [2024-09-25 00:27:21,905 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/97f751854/ebce106b892e491d81f14cb344706b27 [2024-09-25 00:27:21,909 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:21,910 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:21,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:21,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:21,965 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:21,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:21,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:21,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:21,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:21" (1/2) ... [2024-09-25 00:27:21,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae0ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:21" (1/2) ... [2024-09-25 00:27:21,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2b0067df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,978 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 12:27:21" (2/2) ... [2024-09-25 00:27:21,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae0ea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:21, skipping insertion in model container [2024-09-25 00:27:21,979 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 12:27:21" (2/2) ... [2024-09-25 00:27:21,985 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:21,988 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-25 00:27:22,010 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:22,186 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/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-25 00:27:22,192 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:22,235 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:22,252 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/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-25 00:27:22,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:22,298 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:22,299 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 12:27:22 WrapperNode [2024-09-25 00:27:22,300 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:22,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:22,301 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:22,301 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:22,314 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,314 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,328 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,346 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 00:27:22,346 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,347 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,354 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,356 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,357 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,359 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:22,361 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:22,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:22,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:22,362 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 12:27:22" (1/1) ... [2024-09-25 00:27:22,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:22,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:22,391 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 00:27:22,397 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 00:27:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:22,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:22,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:22,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 00:27:22,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-09-25 00:27:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-09-25 00:27:22,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:22,507 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:22,510 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:22,616 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:22,651 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:22,651 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:22,652 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:22 BoogieIcfgContainer [2024-09-25 00:27:22,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:22,652 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:22,653 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:22,653 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:22,654 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:21" (1/4) ... [2024-09-25 00:27:22,655 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5a47f2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,655 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 12:27:21" (2/4) ... [2024-09-25 00:27:22,655 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5a47f2ea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,655 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 12:27:22" (3/4) ... [2024-09-25 00:27:22,656 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5a47f2ea and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 12:27:22, skipping insertion in model container [2024-09-25 00:27:22,656 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 12:27:22" (4/4) ... [2024-09-25 00:27:22,657 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:22,661 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:22,662 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:22,662 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:22,662 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:22,697 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:22,699 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:22,699 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:22,700 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:22,701 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:22,703 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,739 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:22,740 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:22,741 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:22,741 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:22,741 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:22,742 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:22,742 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 00:27:22,750 INFO L158 Benchmark]: Toolchain (without parser) took 784.00ms. Allocated memory is still 172.0MB. Free memory was 100.9MB in the beginning and 122.1MB in the end (delta: -21.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,751 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,751 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:22,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.13ms. Allocated memory is still 172.0MB. Free memory was 100.7MB in the beginning and 140.8MB in the end (delta: -40.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,752 INFO L158 Benchmark]: Boogie Preprocessor took 60.04ms. Allocated memory is still 172.0MB. Free memory was 140.8MB in the beginning and 138.9MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,752 INFO L158 Benchmark]: RCFGBuilder took 290.46ms. Allocated memory is still 172.0MB. Free memory was 138.9MB in the beginning and 127.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,753 INFO L158 Benchmark]: Referee took 96.14ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 122.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 00:27:22,755 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 0.18ms. Allocated memory is still 104.9MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 172.0MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.13ms. Allocated memory is still 172.0MB. Free memory was 100.7MB in the beginning and 140.8MB in the end (delta: -40.1MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.04ms. Allocated memory is still 172.0MB. Free memory was 140.8MB in the beginning and 138.9MB in the end (delta: 1.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 290.46ms. Allocated memory is still 172.0MB. Free memory was 138.9MB in the beginning and 127.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 96.14ms. Allocated memory is still 172.0MB. Free memory was 127.3MB in the beginning and 122.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:22,792 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m [2024-09-25 00:27:25,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 00:27:25,105 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 00:27:25,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 00:27:25,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 00:27:25,152 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 00:27:25,155 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 00:27:25,156 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 00:27:25,156 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 00:27:25,157 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 00:27:25,157 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 00:27:25,157 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 00:27:25,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 00:27:25,161 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 00:27:25,161 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 00:27:25,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 00:27:25,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 00:27:25,162 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 00:27:25,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 00:27:25,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 00:27:25,163 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 00:27:25,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 00:27:25,167 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 00:27:25,168 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 00:27:25,168 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 00:27:25,168 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 00:27:25,168 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 00:27:25,169 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 00:27:25,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 00:27:25,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 00:27:25,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 00:27:25,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 00:27:25,170 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 00:27:25,170 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 00:27:25,170 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 00:27:25,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:25,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 00:27:25,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 00:27:25,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 00:27:25,173 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 00:27:25,173 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 00:27:25,174 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 00:27:25,174 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 00:27:25,174 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 00:27:25,175 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 00:27:25,175 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 00:27:25,175 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 00:27:25,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 00:27:25,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 00:27:25,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 00:27:25,542 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 00:27:25,542 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 00:27:25,544 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+cfa-reducer.yml/witness-2.1.yml [2024-09-25 00:27:25,595 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 00:27:25,595 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 00:27:25,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:27,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 00:27:27,461 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 00:27:27,462 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:27,472 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f04944ddc/d06e50062aaf4413bf56fa415646efde/FLAGe9d7173d9 [2024-09-25 00:27:27,491 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f04944ddc/d06e50062aaf4413bf56fa415646efde [2024-09-25 00:27:27,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 00:27:27,494 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 00:27:27,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 00:27:27,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 00:27:27,503 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 12:27:25" (1/2) ... [2024-09-25 00:27:27,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3d00c9 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 00:27:27,507 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 12:27:25" (1/2) ... [2024-09-25 00:27:27,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2e792de4 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 00:27:27,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,511 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3d00c9 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 00:27:27,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:27:27" (2/2) ... [2024-09-25 00:27:27,522 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 00:27:27,523 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_65) == __return_65)) [2024-09-25 00:27:27,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 00:27:27,725 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/gsv2008.c.i.v+cfa-reducer.c[986,999] [2024-09-25 00:27:27,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,757 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 00:27:27,775 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/gsv2008.c.i.v+cfa-reducer.c[986,999] Start Parsing Local [2024-09-25 00:27:27,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 00:27:27,838 INFO L204 MainTranslator]: Completed translation [2024-09-25 00:27:27,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27 WrapperNode [2024-09-25 00:27:27,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 00:27:27,840 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,840 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 00:27:27,841 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 00:27:27,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,883 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 00:27:27,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,891 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,895 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 00:27:27,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 00:27:27,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 00:27:27,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 00:27:27,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (1/1) ... [2024-09-25 00:27:27,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 00:27:27,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 00:27:27,940 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 00:27:27,944 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 00:27:28,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 00:27:28,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 00:27:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 00:27:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 00:27:28,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 00:27:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 00:27:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 00:27:28,003 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 00:27:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 00:27:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 00:27:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 00:27:28,004 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 00:27:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 00:27:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 00:27:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-09-25 00:27:28,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 00:27:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-09-25 00:27:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-09-25 00:27:28,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 00:27:28,091 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 00:27:28,094 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 00:27:28,241 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 00:27:28,289 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 00:27:28,290 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 00:27:28,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28 BoogieIcfgContainer [2024-09-25 00:27:28,291 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 00:27:28,292 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 00:27:28,292 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 00:27:28,293 INFO L274 PluginConnector]: Referee initialized [2024-09-25 00:27:28,293 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 12:27:25" (1/4) ... [2024-09-25 00:27:28,294 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5030346f 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 00:27:28,294 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 12:27:27" (2/4) ... [2024-09-25 00:27:28,295 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5030346f 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 00:27:28,295 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:27:27" (3/4) ... [2024-09-25 00:27:28,295 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5030346f 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 00:27:28,295 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:27:28" (4/4) ... [2024-09-25 00:27:28,296 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+cfa-reducer.c [2024-09-25 00:27:28,300 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 00:27:28,301 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 00:27:28,302 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 00:27:28,302 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location [2024-09-25 00:27:28,341 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-25 00:27:28,342 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 00:27:28,343 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 00:27:28,343 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 00:27:28,345 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 00:27:28,347 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,374 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-25 00:27:28,375 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 00:27:28,376 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 00:27:28,376 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 00:27:28,377 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 00:27:28,377 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 00:27:28,378 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 00:27:28,382 INFO L158 Benchmark]: Toolchain (without parser) took 887.74ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 35.6MB in the beginning and 34.3MB in the end (delta: 1.3MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,383 INFO L158 Benchmark]: Witness Parser took 0.21ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:28,383 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 00:27:28,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.43ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 35.4MB in the beginning and 54.2MB in the end (delta: -18.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,387 INFO L158 Benchmark]: Boogie Preprocessor took 59.76ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 52.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,387 INFO L158 Benchmark]: RCFGBuilder took 390.42ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 40.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,389 INFO L158 Benchmark]: Referee took 88.54ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 34.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 00:27:28,392 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 0.21ms. Allocated memory is still 60.8MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 35.8MB in the beginning and 35.7MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.43ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 35.4MB in the beginning and 54.2MB in the end (delta: -18.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.76ms. Allocated memory is still 75.5MB. Free memory was 54.2MB in the beginning and 52.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 390.42ms. Allocated memory is still 75.5MB. Free memory was 52.2MB in the beginning and 40.0MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 88.54ms. Allocated memory is still 75.5MB. Free memory was 40.0MB in the beginning and 34.6MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 00:27:28,420 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...