./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c --full-output --witness-type correctness_witness --validate ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-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.v+lhb-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-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 19:07:02,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:03,004 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:03,013 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:03,014 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:03,042 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:03,042 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:03,043 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:03,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:03,045 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:03,046 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:03,046 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:03,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:03,048 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:03,049 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:03,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:03,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:03,050 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:03,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:03,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:03,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:03,054 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:03,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:03,055 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:03,055 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:03,055 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:03,055 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:03,056 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:03,056 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:03,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:03,056 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:03,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:03,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:03,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:03,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:03,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:03,058 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:03,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:03,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:03,059 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:03,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:03,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:03,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:03,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:03,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:03,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:03,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:03,418 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:03,419 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:03,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:03,476 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:03,476 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:03,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:04,928 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:05,139 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:05,140 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:05,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1f5edd83c/aea8b39987bb46cb9ac054b893ae6c41/FLAG97afb3fb3 [2024-09-21 19:07:05,521 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1f5edd83c/aea8b39987bb46cb9ac054b893ae6c41 [2024-09-21 19:07:05,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:05,522 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:05,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:05,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:05,533 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:05,534 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" (1/2) ... [2024-09-21 19:07:05,538 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366a75ef and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:05, skipping insertion in model container [2024-09-21 19:07:05,538 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" (1/2) ... [2024-09-21 19:07:05,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f48c0e4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:05, skipping insertion in model container [2024-09-21 19:07:05,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:05" (2/2) ... [2024-09-21 19:07:05,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@366a75ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05, skipping insertion in model container [2024-09-21 19:07:05,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:05" (2/2) ... [2024-09-21 19:07:05,550 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:05,551 INFO L1541 ArrayList]: Function contract at [L14]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:05,554 INFO L1541 ArrayList]: Function contract at [L4]: requires 1, ensures 1 [2024-09-21 19:07:05,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:05,771 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-21 19:07:05,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:05,794 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:07:05,836 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-21 19:07:05,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:05,857 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:05,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05 WrapperNode [2024-09-21 19:07:05,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:05,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:05,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:05,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:05,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,885 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,895 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 19:07:05,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:05,919 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:05,919 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:05,919 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:05,920 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (1/1) ... [2024-09-21 19:07:05,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:05,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:05,967 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 19:07:05,970 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 19:07:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:07:06,020 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:06,098 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:06,100 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:06,119 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:06,187 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:06,304 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:06,334 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:06,335 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:06,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:06 BoogieIcfgContainer [2024-09-21 19:07:06,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:06,336 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:06,336 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:06,337 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:06,337 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" (1/4) ... [2024-09-21 19:07:06,338 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e83a047 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:06, skipping insertion in model container [2024-09-21 19:07:06,338 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:05" (2/4) ... [2024-09-21 19:07:06,338 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e83a047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:06, skipping insertion in model container [2024-09-21 19:07:06,339 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:05" (3/4) ... [2024-09-21 19:07:06,339 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@1e83a047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:06, skipping insertion in model container [2024-09-21 19:07:06,339 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:06" (4/4) ... [2024-09-21 19:07:06,342 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:06,346 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:06,348 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-21 19:07:06,348 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 14 edges. [2024-09-21 19:07:06,348 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 19:07:06,348 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 19:07:06,349 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:06,390 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 9 edges [2024-09-21 19:07:06,391 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:06,392 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:06,392 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:06,398 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:06,400 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:06,453 INFO L101 BaseMinimizeStates]: Removed 13 edges and 6 locations by large block encoding [2024-09-21 19:07:06,455 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:06,455 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:06,455 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:06,455 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:06,456 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-21 19:07:06,475 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2024-09-21 19:07:06,476 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:06,476 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:06,477 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:06,477 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:06,478 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:06,500 INFO L101 BaseMinimizeStates]: Removed 24 edges and 7 locations by large block encoding [2024-09-21 19:07:06,500 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:06,500 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:06,500 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:06,501 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:06,505 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 19:07:06,506 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 19:07:06,511 INFO L158 Benchmark]: Toolchain (without parser) took 987.43ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-21 19:07:06,515 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:06,516 INFO L158 Benchmark]: CDTParser took 1.56ms. Allocated memory is still 104.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:06,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.41ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 107.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:06,517 INFO L158 Benchmark]: Boogie Preprocessor took 57.39ms. Allocated memory is still 155.2MB. Free memory was 107.7MB in the beginning and 105.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:06,517 INFO L158 Benchmark]: RCFGBuilder took 416.58ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 121.4MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:07:06,518 INFO L158 Benchmark]: Referee took 172.53ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:07:06,521 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 0.22ms. Allocated memory is still 104.9MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.56ms. Allocated memory is still 104.9MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.41ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 107.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.39ms. Allocated memory is still 155.2MB. Free memory was 107.7MB in the beginning and 105.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.58ms. Allocated memory is still 155.2MB. Free memory was 105.6MB in the beginning and 121.4MB in the end (delta: -15.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 172.53ms. Allocated memory is still 155.2MB. Free memory was 121.4MB in the beginning and 110.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:06,554 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c ../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-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 19:07:08,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:08,905 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-21 19:07:08,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:08,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:08,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:08,947 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:08,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:08,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:08,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:08,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:08,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:08,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:08,955 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:08,956 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:08,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:08,956 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:08,957 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:08,957 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:08,957 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:08,958 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:08,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:08,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:08,961 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-21 19:07:08,961 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-21 19:07:08,961 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:08,962 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-21 19:07:08,962 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:08,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:08,962 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:08,963 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:08,963 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:08,963 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:08,963 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:08,963 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:08,964 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:08,964 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:08,966 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:08,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:08,967 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-21 19:07:08,967 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-21 19:07:08,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:08,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:08,968 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:08,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:08,969 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-21 19:07:08,969 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:09,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:09,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:09,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:09,365 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:09,365 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:09,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/output/witness-2.1.yml [2024-09-21 19:07:09,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:09,437 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:09,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:11,023 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:11,228 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:11,229 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:11,235 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/1f1dda09d/d44eee654565442c9e1895af29e6ea16/FLAG40b3df9eb [2024-09-21 19:07:11,263 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/1f1dda09d/d44eee654565442c9e1895af29e6ea16 [2024-09-21 19:07:11,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:11,268 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:11,271 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:11,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:11,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:11,278 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 07:07:09" (1/2) ... [2024-09-21 19:07:11,282 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f13ee62 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:11, skipping insertion in model container [2024-09-21 19:07:11,283 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 07:07:09" (1/2) ... [2024-09-21 19:07:11,286 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b10efe8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:11, skipping insertion in model container [2024-09-21 19:07:11,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:11" (2/2) ... [2024-09-21 19:07:11,287 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f13ee62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11, skipping insertion in model container [2024-09-21 19:07:11,287 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:11" (2/2) ... [2024-09-21 19:07:11,295 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:11,296 INFO L1541 ArrayList]: Function contract at [L14]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:11,296 INFO L1541 ArrayList]: Function contract at [L4]: requires 1, ensures 1 [2024-09-21 19:07:11,316 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:11,498 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-21 19:07:11,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:11,527 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:07:11,571 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-21 19:07:11,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:11,592 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:11,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11 WrapperNode [2024-09-21 19:07:11,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:11,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:11,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:11,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:11,607 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,616 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,629 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 19:07:11,630 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,635 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,647 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:11,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:11,651 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:11,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:11,652 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (1/1) ... [2024-09-21 19:07:11,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:11,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:11,684 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 19:07:11,692 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 19:07:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:11,739 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:07:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:11,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-21 19:07:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-21 19:07:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-21 19:07:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:11,837 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:11,841 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:11,847 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:11,917 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:12,010 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:12,060 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:12,060 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-21 19:07:12,061 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:12 BoogieIcfgContainer [2024-09-21 19:07:12,061 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:12,062 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:12,062 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:12,063 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:12,064 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 07:07:09" (1/4) ... [2024-09-21 19:07:12,065 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7edcfdb0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:12, skipping insertion in model container [2024-09-21 19:07:12,065 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:11" (2/4) ... [2024-09-21 19:07:12,069 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7edcfdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:12, skipping insertion in model container [2024-09-21 19:07:12,070 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:11" (3/4) ... [2024-09-21 19:07:12,070 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@7edcfdb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:12, skipping insertion in model container [2024-09-21 19:07:12,070 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:12" (4/4) ... [2024-09-21 19:07:12,072 INFO L79 RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-09-21 19:07:12,079 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-21 19:07:12,080 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 9 edges. [2024-09-21 19:07:12,080 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 14 edges. [2024-09-21 19:07:12,080 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 19:07:12,081 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 19:07:12,081 INFO L131 InvariantChecker]: Will check 4 loop-free subgraphs from procedure entry to error location [2024-09-21 19:07:12,137 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 9 edges [2024-09-21 19:07:12,138 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:12,140 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:12,141 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:12,142 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:12,144 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:12,181 INFO L101 BaseMinimizeStates]: Removed 13 edges and 6 locations by large block encoding [2024-09-21 19:07:12,182 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:12,183 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:12,183 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:12,183 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:12,184 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 3 edges [2024-09-21 19:07:12,200 INFO L314 BlockEncoder]: Initial Icfg 10 locations, 14 edges [2024-09-21 19:07:12,200 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:12,201 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:12,203 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:12,204 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:12,204 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:12,229 INFO L101 BaseMinimizeStates]: Removed 24 edges and 7 locations by large block encoding [2024-09-21 19:07:12,229 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:12,230 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:12,230 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:12,230 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:12,235 INFO L314 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2024-09-21 19:07:12,236 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 19:07:12,241 INFO L158 Benchmark]: Toolchain (without parser) took 972.66ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 43.5MB in the beginning and 47.2MB in the end (delta: -3.7MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2024-09-21 19:07:12,242 INFO L158 Benchmark]: Witness Parser took 0.33ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:12,242 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:12,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.73ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 29.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:12,243 INFO L158 Benchmark]: Boogie Preprocessor took 54.48ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 27.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:12,244 INFO L158 Benchmark]: RCFGBuilder took 411.70ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 27.3MB in the beginning and 59.1MB in the end (delta: -31.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. [2024-09-21 19:07:12,245 INFO L158 Benchmark]: Referee took 177.27ms. Allocated memory is still 88.1MB. Free memory was 58.9MB in the beginning and 47.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:07:12,248 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 0.33ms. Allocated memory is still 62.9MB. Free memory was 39.6MB in the beginning and 39.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 37.5MB in the beginning and 37.5MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.73ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 29.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.48ms. Allocated memory is still 62.9MB. Free memory was 29.4MB in the beginning and 27.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.70ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 27.3MB in the beginning and 59.1MB in the end (delta: -31.8MB). Peak memory consumption was 8.3MB. Max. memory is 16.1GB. * Referee took 177.27ms. Allocated memory is still 88.1MB. Free memory was 58.9MB in the beginning and 47.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-21 19:07:12,278 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