./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/output/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 27b49876 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:01,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:01,212 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:01,216 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:01,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:01,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:01,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:01,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:01,250 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:01,251 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:01,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:01,251 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:01,252 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:01,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:01,252 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:01,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:01,253 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:01,254 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:01,254 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:01,254 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:01,255 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:01,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:01,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:01,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:01,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:01,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:01,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:01,260 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:01,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:01,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:01,260 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:01,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:01,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:01,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:01,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:01,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:01,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:01,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:01,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:01,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:01,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:01,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:01,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:01,267 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:01,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:01,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:01,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:01,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:01,498 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:01,499 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:02,966 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:03,147 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:03,148 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:03,158 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/ca65244dc/2440eeb81751452793d058ba26754cd9/FLAG776934ef6 [2024-09-21 19:07:03,546 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/ca65244dc/2440eeb81751452793d058ba26754cd9 [2024-09-21 19:07:03,548 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:03,549 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:03,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:03,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:03,605 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:03,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:03,608 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:03,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:03,613 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:03" (1/2) ... [2024-09-21 19:07:03,616 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126aaa3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:03, skipping insertion in model container [2024-09-21 19:07:03,616 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:03" (1/2) ... [2024-09-21 19:07:03,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@578e7740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:03, skipping insertion in model container [2024-09-21 19:07:03,618 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:03" (2/2) ... [2024-09-21 19:07:03,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126aaa3b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:03, skipping insertion in model container [2024-09-21 19:07:03,619 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:03" (2/2) ... [2024-09-21 19:07:03,625 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:03,628 INFO L1541 ArrayList]: Function contract at [L13]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:03,629 INFO L1541 ArrayList]: Function contract at [L4]: requires 1, ensures 1 [2024-09-21 19:07:03,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:03,807 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] [2024-09-21 19:07:03,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:03,825 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:07:03,859 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] [2024-09-21 19:07:03,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:03,874 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:03,875 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:03 WrapperNode [2024-09-21 19:07:03,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:03,876 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:03,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:03,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:03,897 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,897 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,905 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,919 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:03,919 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,919 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,926 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,928 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,929 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,930 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:03,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:03,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:03,938 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:03,938 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 21.09 07:07:03" (1/1) ... [2024-09-21 19:07:03,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:03,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:03,971 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) [2024-09-21 19:07:03,977 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 [2024-09-21 19:07:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:07:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:04,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:04,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:04,162 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:04,165 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:04,169 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:04,215 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:04,297 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:04,330 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:04,331 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:04,331 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:04 BoogieIcfgContainer [2024-09-21 19:07:04,332 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:04,333 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:04,333 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:04,334 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:04,334 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:03" (1/4) ... [2024-09-21 19:07:04,335 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39da2193 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:04, skipping insertion in model container [2024-09-21 19:07:04,336 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:03" (2/4) ... [2024-09-21 19:07:04,336 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39da2193 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:04, skipping insertion in model container [2024-09-21 19:07:04,337 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 21.09 07:07:03" (3/4) ... [2024-09-21 19:07:04,337 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@39da2193 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:04, skipping insertion in model container [2024-09-21 19:07:04,337 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:04" (4/4) ... [2024-09-21 19:07:04,338 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:04,342 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:04,343 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-21 19:07:04,343 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 11 edges. [2024-09-21 19:07:04,344 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:04,344 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:04,344 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:04,387 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-21 19:07:04,388 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:04,389 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:04,390 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:04,391 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:04,394 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:04,413 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-21 19:07:04,415 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:04,415 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:04,416 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:04,416 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:04,417 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-21 19:07:04,434 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2024-09-21 19:07:04,436 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:04,437 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:04,437 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:04,437 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:04,437 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:04,453 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-21 19:07:04,457 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:04,457 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:04,458 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:04,458 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:04,463 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 19:07:04,466 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) [2024-09-21 19:07:04,471 INFO L158 Benchmark]: Toolchain (without parser) took 865.67ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 125.9MB in the end (delta: -28.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:04,472 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:04,472 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:04,473 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.81ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 84.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:04,473 INFO L158 Benchmark]: Boogie Preprocessor took 59.74ms. Allocated memory is still 167.8MB. Free memory was 84.3MB in the beginning and 82.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:04,474 INFO L158 Benchmark]: RCFGBuilder took 395.29ms. Allocated memory is still 167.8MB. Free memory was 82.5MB in the beginning and 132.8MB in the end (delta: -50.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:04,474 INFO L158 Benchmark]: Referee took 136.70ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 125.9MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-21 19:07:04,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 167.8MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.81ms. Allocated memory is still 167.8MB. Free memory was 97.6MB in the beginning and 84.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.74ms. Allocated memory is still 167.8MB. Free memory was 84.3MB in the beginning and 82.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.29ms. Allocated memory is still 167.8MB. Free memory was 82.5MB in the beginning and 132.8MB in the end (delta: -50.4MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Referee took 136.70ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 125.9MB in the end (delta: 7.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:04,500 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/output/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:06,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:06,744 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:07:06,750 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:06,750 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:06,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:06,783 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:06,784 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:06,784 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:06,785 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:06,785 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:06,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:06,788 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:06,788 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:06,789 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:06,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:06,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:06,790 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:06,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:06,791 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:06,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:06,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:06,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:06,795 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:07:06,795 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:07:06,795 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:06,795 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:07:06,796 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:06,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:06,796 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:06,796 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:06,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:06,797 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:06,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:06,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:06,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:06,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:06,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:06,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:06,800 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:07:06,800 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:07:06,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:06,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:06,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:06,801 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:06,802 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:07:06,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:07,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:07,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:07,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:07,141 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:07,142 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:07,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:07,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:07,193 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:07,193 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:08,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:08,928 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:08,928 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:08,936 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/821b4c04d/d9edcf0ade6d4d7ca4ebf70564ffd804/FLAG56fc4359b [2024-09-21 19:07:08,953 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/821b4c04d/d9edcf0ade6d4d7ca4ebf70564ffd804 [2024-09-21 19:07:08,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:08,957 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:08,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:08,960 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:08,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:08,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:07" (1/2) ... [2024-09-21 19:07:08,967 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44463278 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:08, skipping insertion in model container [2024-09-21 19:07:08,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:07" (1/2) ... [2024-09-21 19:07:08,969 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c6bdf0f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:08, skipping insertion in model container [2024-09-21 19:07:08,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:08" (2/2) ... [2024-09-21 19:07:08,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44463278 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:08, skipping insertion in model container [2024-09-21 19:07:08,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:08" (2/2) ... [2024-09-21 19:07:08,981 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:08,982 INFO L1541 ArrayList]: Function contract at [L4]: requires 1, ensures 1 [2024-09-21 19:07:08,982 INFO L1541 ArrayList]: Function contract at [L13]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:09,004 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:09,184 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] [2024-09-21 19:07:09,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:09,211 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:07:09,255 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] [2024-09-21 19:07:09,258 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:09,275 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:09,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09 WrapperNode [2024-09-21 19:07:09,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:09,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:09,277 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:09,277 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:09,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,305 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:09,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,315 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,317 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,319 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,320 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:09,324 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:09,325 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:09,325 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:09,326 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (1/1) ... [2024-09-21 19:07:09,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:09,356 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) [2024-09-21 19:07:09,359 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 [2024-09-21 19:07:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:09,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:07:09,410 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:09,489 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:09,491 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:09,495 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:09,549 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:09,658 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:09,699 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:09,700 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:09,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:09 BoogieIcfgContainer [2024-09-21 19:07:09,702 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:09,703 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:09,703 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:09,704 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:09,705 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:07" (1/4) ... [2024-09-21 19:07:09,705 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5d0b438b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:09, skipping insertion in model container [2024-09-21 19:07:09,705 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:08" (2/4) ... [2024-09-21 19:07:09,706 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5d0b438b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:09, skipping insertion in model container [2024-09-21 19:07:09,706 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:09" (3/4) ... [2024-09-21 19:07:09,706 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5d0b438b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:09, skipping insertion in model container [2024-09-21 19:07:09,707 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:09" (4/4) ... [2024-09-21 19:07:09,708 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-21 19:07:09,712 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:09,713 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 7 edges. [2024-09-21 19:07:09,713 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 11 edges. [2024-09-21 19:07:09,713 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:09,714 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:09,714 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:09,757 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-21 19:07:09,758 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:09,759 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:09,759 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:09,761 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:09,762 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:09,778 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-21 19:07:09,780 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:09,780 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:09,780 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:09,781 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:09,781 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-21 19:07:09,801 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2024-09-21 19:07:09,801 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:09,802 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:09,802 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:09,802 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:09,802 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:09,819 INFO L101 BaseMinimizeStates]: Removed 16 edges and 5 locations by large block encoding [2024-09-21 19:07:09,819 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:09,820 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:09,820 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:09,820 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:09,826 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 19:07:09,827 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) [2024-09-21 19:07:09,831 INFO L158 Benchmark]: Toolchain (without parser) took 873.73ms. Allocated memory is still 71.3MB. Free memory was 35.1MB in the beginning and 38.2MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:09,833 INFO L158 Benchmark]: Witness Parser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:09,833 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory was 27.4MB in the beginning and 27.4MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:09,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.94ms. Allocated memory is still 71.3MB. Free memory was 34.9MB in the beginning and 39.2MB in the end (delta: -4.3MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2024-09-21 19:07:09,835 INFO L158 Benchmark]: Boogie Preprocessor took 45.59ms. Allocated memory is still 71.3MB. Free memory was 39.2MB in the beginning and 37.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:09,835 INFO L158 Benchmark]: RCFGBuilder took 377.94ms. Allocated memory is still 71.3MB. Free memory was 37.1MB in the beginning and 46.3MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:09,836 INFO L158 Benchmark]: Referee took 126.76ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 38.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 19:07:09,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.(AcyclicSubgraphMerger.java:169) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 29.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.10ms. Allocated memory is still 52.4MB. Free memory was 27.4MB in the beginning and 27.4MB in the end (delta: 63.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.94ms. Allocated memory is still 71.3MB. Free memory was 34.9MB in the beginning and 39.2MB in the end (delta: -4.3MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.59ms. Allocated memory is still 71.3MB. Free memory was 39.2MB in the beginning and 37.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.94ms. Allocated memory is still 71.3MB. Free memory was 37.1MB in the beginning and 46.3MB in the end (delta: -9.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 126.76ms. Allocated memory is still 71.3MB. Free memory was 46.3MB in the beginning and 38.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:09,860 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug