This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 11:46:03,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:03,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-25 11:46:03,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:03,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:03,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:03,497 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:03,497 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:03,498 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:03,498 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:03,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:03,499 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:03,500 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:03,500 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:03,500 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:03,501 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:03,501 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:03,502 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:03,502 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 11:46:03,502 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:03,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:03,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:03,506 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:03,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:03,507 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:03,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:03,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:03,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:03,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:03,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:03,512 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:03,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:03,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:03,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:03,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:03,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:03,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:03,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 11:46:03,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 11:46:03,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:03,514 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:03,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:03,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:03,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:03,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:03,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:03,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:03,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:03,821 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:03,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:05,237 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:05,437 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:05,437 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:05,446 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f4ab95116/0f4702ec04a043088ec863c904e3a6dd/FLAGe9505a120 [2024-09-25 11:46:05,817 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f4ab95116/0f4702ec04a043088ec863c904e3a6dd [2024-09-25 11:46:05,819 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:05,820 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:05,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 11:46:05,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:05,864 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:05,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:05,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:05,872 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:05,873 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ... [2024-09-25 11:46:05,874 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1722765b 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 11:46:05,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ... [2024-09-25 11:46:05,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@26a0d70b 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 11:46:05,876 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 11:46:05,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1722765b 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 11:46:05,877 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 11:46:05,885 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:05,886 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-25 11:46:05,887 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:05,905 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:06,051 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.p+cfa-reducer.c[989,1002] [2024-09-25 11:46:06,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:06,082 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:06,128 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.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-25 11:46:06,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:06,151 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:06,152 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 11:46:06,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:06,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:06,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:06,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:06,167 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 11:46:06,168 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 11:46:06,175 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 11:46:06,183 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 11:46:06,187 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 11:46:06,187 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 11:46:06,193 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 11:46:06,195 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 11:46:06,199 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 11:46:06,200 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 11:46:06,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:06,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:06,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:06,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:06,205 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 11:46:06,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:06,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:06,235 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 11:46:06,237 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 11:46:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:06,279 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:06,280 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:06,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:06,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-25 11:46:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-25 11:46:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-25 11:46:06,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:06,354 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:06,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:06,493 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:06,520 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:06,522 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:06,523 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 11:46:06,523 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:06,524 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:06,524 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:06,525 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:06,525 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:05" (1/4) ... [2024-09-25 11:46:06,526 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d318523 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 11:46:06,526 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 11:46:06,526 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d318523 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 11:46:06,526 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 11:46:06,527 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1d318523 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 11:46:06,527 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 11:46:06,529 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:06,532 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:06,533 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-25 11:46:06,533 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 11:46:06,533 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 11:46:06,534 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:06,571 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-09-25 11:46:06,572 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:06,573 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:06,573 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:06,574 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:06,576 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:06,597 INFO L101 BaseMinimizeStates]: Removed 20 edges and 6 locations by large block encoding [2024-09-25 11:46:06,598 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:06,598 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:06,598 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:06,599 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:06,603 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:06,604 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 11:46:06,609 INFO L158 Benchmark]: Toolchain (without parser) took 743.70ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 126.8MB in the end (delta: 9.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,609 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:06,610 INFO L158 Benchmark]: Witness Parser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:06,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 285.26ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 121.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,611 INFO L158 Benchmark]: Boogie Preprocessor took 49.68ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,611 INFO L158 Benchmark]: RCFGBuilder took 319.86ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 132.2MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,612 INFO L158 Benchmark]: Referee took 83.08ms. Allocated memory is still 167.8MB. Free memory was 132.2MB in the beginning and 126.8MB in the end (delta: 5.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 11:46:06,614 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory is still 136.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.09ms. Allocated memory is still 167.8MB. Free memory is still 138.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 285.26ms. Allocated memory is still 167.8MB. Free memory was 135.8MB in the beginning and 121.9MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.68ms. Allocated memory is still 167.8MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 319.86ms. Allocated memory is still 167.8MB. Free memory was 119.8MB in the beginning and 132.2MB in the end (delta: -12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Referee took 83.08ms. Allocated memory is still 167.8MB. Free memory was 132.2MB in the beginning and 126.8MB in the end (delta: 5.5MB). 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 11:46:06,642 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-fb1cb0b-m [2024-09-25 11:46:08,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 11:46:08,895 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-25 11:46:08,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 11:46:08,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 11:46:08,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 11:46:08,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 11:46:08,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 11:46:08,941 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 11:46:08,942 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 11:46:08,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 11:46:08,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 11:46:08,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 11:46:08,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 11:46:08,944 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 11:46:08,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 11:46:08,945 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 11:46:08,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 11:46:08,946 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 11:46:08,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 11:46:08,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 11:46:08,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 11:46:08,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 11:46:08,952 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-25 11:46:08,952 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-25 11:46:08,952 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 11:46:08,952 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-25 11:46:08,953 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 11:46:08,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 11:46:08,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 11:46:08,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 11:46:08,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 11:46:08,957 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-25 11:46:08,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 11:46:08,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 11:46:08,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:08,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 11:46:08,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 11:46:08,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 11:46:08,960 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-25 11:46:08,961 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-25 11:46:08,961 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 11:46:08,961 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 11:46:08,961 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 11:46:08,962 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 11:46:08,962 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-25 11:46:08,962 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-25 11:46:09,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 11:46:09,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 11:46:09,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 11:46:09,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 11:46:09,348 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 11:46:09,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:10,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 11:46:11,123 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 11:46:11,129 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:11,138 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/c039a3569/15875cb8f073412b987e344e4c1f68d3/FLAG66a3980fe [2024-09-25 11:46:11,515 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/c039a3569/15875cb8f073412b987e344e4c1f68d3 [2024-09-25 11:46:11,517 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-25 11:46:11,518 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-25 11:46:11,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml [2024-09-25 11:46:11,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 11:46:11,573 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-25 11:46:11,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:11,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 11:46:11,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 11:46:11,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ... [2024-09-25 11:46:11,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0591d0 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 11:46:11,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ... [2024-09-25 11:46:11,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1599f05 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 11:46:11,584 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 11:46:11,584 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0591d0 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 11:46:11,584 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 11:46:11,596 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-25 11:46:11,597 INFO L1541 ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) [2024-09-25 11:46:11,597 INFO L1541 ArrayList]: Function contract at [L13]: requires null, ensures (__return_main == \old(__return_main)) [2024-09-25 11:46:11,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 11:46:11,752 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.p+cfa-reducer.c[989,1002] [2024-09-25 11:46:11,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:11,771 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global [2024-09-25 11:46:11,816 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.p+cfa-reducer.c[989,1002] Start Parsing Local [2024-09-25 11:46:11,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 11:46:11,840 INFO L204 MainTranslator]: Completed translation [2024-09-25 11:46:11,841 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 11:46:11,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 11:46:11,842 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 11:46:11,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 11:46:11,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 11:46:11,856 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 11:46:11,857 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 11:46:11,864 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 11:46:11,878 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 11:46:11,878 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 11:46:11,878 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 11:46:11,886 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 11:46:11,888 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 11:46:11,890 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 11:46:11,892 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 11:46:11,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 11:46:11,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 11:46:11,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 11:46:11,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 11:46:11,899 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 11:46:11,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 11:46:11,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-25 11:46:11,929 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 11:46:11,945 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 11:46:11,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 11:46:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 11:46:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-25 11:46:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-25 11:46:11,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 11:46:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-25 11:46:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-25 11:46:11,991 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 11:46:11,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 11:46:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-25 11:46:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 11:46:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-25 11:46:11,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-25 11:46:11,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-25 11:46:12,070 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 11:46:12,072 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 11:46:12,184 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 11:46:12,229 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 11:46:12,233 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 11:46:12,233 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 11:46:12,233 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 11:46:12,234 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-25 11:46:12,234 INFO L270 PluginConnector]: Initializing Referee... [2024-09-25 11:46:12,235 INFO L274 PluginConnector]: Referee initialized [2024-09-25 11:46:12,236 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:11" (1/4) ... [2024-09-25 11:46:12,237 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d20773c 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 11:46:12,237 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 11:46:12,237 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d20773c 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 11:46:12,238 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 11:46:12,238 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7d20773c 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 11:46:12,238 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 11:46:12,240 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-25 11:46:12,244 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-25 11:46:12,245 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 12 edges. [2024-09-25 11:46:12,246 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-25 11:46:12,246 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges. [2024-09-25 11:46:12,246 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-25 11:46:12,293 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2024-09-25 11:46:12,295 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-25 11:46:12,296 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-25 11:46:12,296 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-25 11:46:12,297 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-25 11:46:12,299 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:12,328 INFO L101 BaseMinimizeStates]: Removed 19 edges and 6 locations by large block encoding [2024-09-25 11:46:12,329 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-25 11:46:12,330 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-25 11:46:12,330 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-25 11:46:12,331 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-25 11:46:12,335 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-25 11:46:12,336 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 11:46:12,341 INFO L158 Benchmark]: Toolchain (without parser) took 767.01ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 30.8MB in the end (delta: 15.4MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,341 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.7MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:12,342 INFO L158 Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 67.1MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 11:46:12,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.22ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 31.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,343 INFO L158 Benchmark]: Boogie Preprocessor took 52.72ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 29.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,343 INFO L158 Benchmark]: RCFGBuilder took 336.71ms. Allocated memory is still 67.1MB. Free memory was 29.6MB in the beginning and 37.1MB in the end (delta: -7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,345 INFO L158 Benchmark]: Referee took 105.10ms. Allocated memory is still 67.1MB. Free memory was 37.1MB in the beginning and 30.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-25 11:46:12,351 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 0.41ms. Allocated memory is still 48.2MB. Free memory was 29.8MB in the beginning and 29.7MB in the end (delta: 60.9kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.10ms. Allocated memory is still 67.1MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.22ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 31.8MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.72ms. Allocated memory is still 67.1MB. Free memory was 31.8MB in the beginning and 29.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.71ms. Allocated memory is still 67.1MB. Free memory was 29.6MB in the beginning and 37.1MB in the end (delta: -7.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Referee took 105.10ms. Allocated memory is still 67.1MB. Free memory was 37.1MB in the beginning and 30.8MB in the end (delta: 6.3MB). 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 11:46:12,379 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...