This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:03,868 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:03,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:03,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:03,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:03,972 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:03,974 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:03,975 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:03,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:03,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:03,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:03,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:03,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:03,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:03,981 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:03,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:03,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:03,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:03,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:03,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:03,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:03,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:03,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:03,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:03,987 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:03,987 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:03,987 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:03,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:03,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:03,988 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:03,988 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:03,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:03,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:03,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:03,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:03,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:03,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:03,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:03,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:03,992 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:03,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:03,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:03,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:03,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:04,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:04,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:04,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:04,289 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:04,289 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:04,290 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:05,640 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:05,818 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:05,819 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:05,825 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/31ec42d90/00716f8fd030449b8799158e1da45ed5/FLAGa75c0e347 [2024-09-25 11:46:05,838 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/31ec42d90/00716f8fd030449b8799158e1da45ed5 [2024-09-25 11:46:05,840 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:05,840 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:05,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:46:05,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:05,886 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:05,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:05,887 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:05,892 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:05,893 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ... [2024-09-25 11:46:05,894 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca2bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:05, skipping insertion in model container [2024-09-25 11:46:05,894 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ... [2024-09-25 11:46:05,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f4c29be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:05, skipping insertion in model container [2024-09-25 11:46:05,896 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 11:46:05" (2/2) ... [2024-09-25 11:46:05,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca2bd0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:05, skipping insertion in model container [2024-09-25 11:46:05,896 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 11:46:05" (2/2) ... [2024-09-25 11:46:05,903 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:05,904 INFO L1541 ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y)) [2024-09-25 11:46:05,904 INFO L1541 ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:05,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:06,106 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+lhb-reducer.c[1238,1251] [2024-09-25 11:46:06,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:06,138 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:06,183 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+lhb-reducer.c[1238,1251] Start Parsing Local [2024-09-25 11:46:06,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:06,208 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:06,209 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06 WrapperNode [2024-09-25 11:46:06,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:06,210 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:06,210 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:06,211 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:06,224 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,224 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,232 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,245 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 11:46:06,246 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,246 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,249 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,252 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,256 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 11:46:06" (1/1) ... [2024-09-25 11:46:06,257 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ... [2024-09-25 11:46:06,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:06,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:06,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:06,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:06,263 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ... [2024-09-25 11:46:06,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:06,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:06,294 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 11:46:06,301 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 11:46:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:46:06,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:46:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:46:06,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:06,466 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:06,471 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:06,640 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:06,669 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:06,670 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:06,670 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:06 BoogieIcfgContainer [2024-09-25 11:46:06,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:06,671 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:06,671 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:06,671 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:06,671 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:05" (1/4) ... [2024-09-25 11:46:06,672 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:06, skipping insertion in model container [2024-09-25 11:46:06,672 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 11:46:05" (2/4) ... [2024-09-25 11:46:06,673 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:06, skipping insertion in model container [2024-09-25 11:46:06,675 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 11:46:06" (3/4) ... [2024-09-25 11:46:06,676 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:06, skipping insertion in model container [2024-09-25 11:46:06,676 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 11:46:06" (4/4) ... [2024-09-25 11:46:06,677 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:06,681 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:06,682 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges. [2024-09-25 11:46:06,683 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:06,683 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges. [2024-09-25 11:46:06,684 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:06,728 INFO L314 BlockEncoder]: Initial Icfg 12 locations, 16 edges [2024-09-25 11:46:06,734 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:06,734 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:06,735 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:06,736 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:06,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:06,814 INFO L101 BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding [2024-09-25 11:46:06,815 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:06,816 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:06,816 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:06,816 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:06,820 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:06,825 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 11:46:06,832 INFO L158 Benchmark]: Toolchain (without parser) took 945.75ms. Allocated memory is still 165.7MB. Free memory was 132.0MB in the beginning and 124.2MB in the end (delta: 7.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,833 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:06,833 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:06,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,835 INFO L158 Benchmark]: Boogie Preprocessor took 49.99ms. Allocated memory is still 165.7MB. Free memory was 118.0MB in the beginning and 116.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,836 INFO L158 Benchmark]: RCFGBuilder took 409.09ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 132.1MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,837 INFO L158 Benchmark]: Referee took 160.13ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 124.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,839 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 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.99ms. Allocated memory is still 165.7MB. Free memory was 118.0MB in the beginning and 116.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.09ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 132.1MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 160.13ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 124.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:06,867 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:09,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:09,123 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:46:09,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:09,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:09,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:09,161 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:09,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:09,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:09,164 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:09,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:09,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:09,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:09,165 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:09,165 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:09,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:09,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:09,166 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:09,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:09,167 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:09,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:09,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:09,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:09,173 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:46:09,173 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:46:09,174 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:09,174 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:46:09,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:09,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:09,175 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:09,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:09,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:09,176 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:09,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:09,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:09,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:09,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:09,178 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:09,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:09,178 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:46:09,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:46:09,179 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:09,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:09,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:09,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:09,179 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:46:09,179 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:09,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:09,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:09,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:09,527 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:09,527 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:09,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:11,035 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:11,228 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:11,229 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:11,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/91504b109/e1d51536ac424e1b8367def3a6792a44/FLAG2cc2206c7 [2024-09-25 11:46:11,612 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/91504b109/e1d51536ac424e1b8367def3a6792a44 [2024-09-25 11:46:11,615 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:11,616 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:11,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml [2024-09-25 11:46:11,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:11,669 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:11,672 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:11,672 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:11,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:11,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ... [2024-09-25 11:46:11,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec4ffc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:11, skipping insertion in model container [2024-09-25 11:46:11,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ... [2024-09-25 11:46:11,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23a96d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:11, skipping insertion in model container [2024-09-25 11:46:11,682 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 11:46:11" (2/2) ... [2024-09-25 11:46:11,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec4ffc9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11, skipping insertion in model container [2024-09-25 11:46:11,682 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 11:46:11" (2/2) ... [2024-09-25 11:46:11,692 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:11,695 INFO L1541 ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y)) [2024-09-25 11:46:11,696 INFO L1541 ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:11,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:11,902 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+lhb-reducer.c[1238,1251] [2024-09-25 11:46:11,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:11,924 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:11,965 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+lhb-reducer.c[1238,1251] Start Parsing Local [2024-09-25 11:46:11,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:11,987 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:11,988 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11 WrapperNode [2024-09-25 11:46:11,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:11,990 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:11,990 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:11,991 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:12,002 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,002 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,010 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,023 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 11:46:12,023 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,023 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,028 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,032 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,034 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,035 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:12,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:12,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:12,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:12,044 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 11:46:11" (1/1) ... [2024-09-25 11:46:12,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:12,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:12,074 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 11:46:12,077 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 11:46:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:12,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:12,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:12,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:46:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:46:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:46:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:12,206 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:12,208 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:12,352 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:12,391 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:12,391 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:12,392 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:12 BoogieIcfgContainer [2024-09-25 11:46:12,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:12,392 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:12,392 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:12,393 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:12,393 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:11" (1/4) ... [2024-09-25 11:46:12,394 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:12, skipping insertion in model container [2024-09-25 11:46:12,394 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 11:46:11" (2/4) ... [2024-09-25 11:46:12,394 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:12, skipping insertion in model container [2024-09-25 11:46:12,394 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 11:46:11" (3/4) ... [2024-09-25 11:46:12,394 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:12, skipping insertion in model container [2024-09-25 11:46:12,395 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 11:46:12" (4/4) ... [2024-09-25 11:46:12,395 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-09-25 11:46:12,398 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:12,399 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges. [2024-09-25 11:46:12,399 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges. [2024-09-25 11:46:12,399 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges. [2024-09-25 11:46:12,400 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:12,444 INFO L314 BlockEncoder]: Initial Icfg 12 locations, 16 edges [2024-09-25 11:46:12,445 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:12,445 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:12,446 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:12,448 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:12,450 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:12,507 INFO L101 BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding [2024-09-25 11:46:12,508 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:12,508 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:12,509 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:12,510 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:12,514 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:12,515 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 11:46:12,521 INFO L158 Benchmark]: Toolchain (without parser) took 851.23ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 34.7MB in the beginning and 51.4MB in the end (delta: -16.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,522 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 44.0MB. Free memory is still 20.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:12,522 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:12,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.24ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 38.6MB in the end (delta: -4.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,523 INFO L158 Benchmark]: Boogie Preprocessor took 50.63ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,524 INFO L158 Benchmark]: RCFGBuilder took 350.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.5MB in the beginning and 59.8MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,524 INFO L158 Benchmark]: Referee took 127.07ms. Allocated memory is still 83.9MB. Free memory was 59.8MB in the beginning and 51.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,527 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 0.12ms. Allocated memory is still 44.0MB. Free memory is still 20.9MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.24ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 38.6MB in the end (delta: -4.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.63ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.5MB in the beginning and 59.8MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Referee took 127.07ms. Allocated memory is still 83.9MB. Free memory was 59.8MB in the beginning and 51.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-25 11:46:12,554 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...