This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m
[2024-09-25 11:46:03,868 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-25 11:46:03,939 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf
[2024-09-25 11:46:03,944 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-25 11:46:03,945 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-25 11:46:03,972 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-25 11:46:03,974 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-25 11:46:03,975 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-25 11:46:03,975 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-25 11:46:03,976 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-25 11:46:03,976 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-25 11:46:03,977 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-25 11:46:03,978 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-25 11:46:03,978 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-25 11:46:03,981 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-25 11:46:03,981 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-25 11:46:03,981 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-25 11:46:03,982 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-25 11:46:03,982 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-25 11:46:03,982 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-25 11:46:03,982 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-25 11:46:03,986 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-25 11:46:03,987 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-25 11:46:03,987 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-25 11:46:03,987 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-25 11:46:03,987 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-25 11:46:03,987 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-25 11:46:03,988 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-25 11:46:03,988 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-25 11:46:03,988 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-25 11:46:03,988 INFO  L153        SettingsManager]:  * Future-live optimization=false
[2024-09-25 11:46:03,989 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-25 11:46:03,989 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-25 11:46:03,989 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 11:46:03,989 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-25 11:46:03,990 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-25 11:46:03,990 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-25 11:46:03,990 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-25 11:46:03,992 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-25 11:46:03,992 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-25 11:46:03,993 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-25 11:46:03,993 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-25 11:46:03,994 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-25 11:46:03,994 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-25 11:46:04,258 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-25 11:46:04,284 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-25 11:46:04,287 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-25 11:46:04,289 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-25 11:46:04,289 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-25 11:46:04,290 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:05,640 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-25 11:46:05,818 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-25 11:46:05,819 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:05,825 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/31ec42d90/00716f8fd030449b8799158e1da45ed5/FLAGa75c0e347
[2024-09-25 11:46:05,838 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/31ec42d90/00716f8fd030449b8799158e1da45ed5
[2024-09-25 11:46:05,840 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-25 11:46:05,840 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-25 11:46:05,841 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml
[2024-09-25 11:46:05,885 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-25 11:46:05,886 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2024-09-25 11:46:05,887 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-25 11:46:05,887 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-25 11:46:05,892 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-25 11:46:05,893 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ...
[2024-09-25 11:46:05,894 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca2bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:05, skipping insertion in model container
[2024-09-25 11:46:05,894 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:05" (1/2) ...
[2024-09-25 11:46:05,895 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f4c29be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:05, skipping insertion in model container
[2024-09-25 11:46:05,896 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:05" (2/2) ...
[2024-09-25 11:46:05,896 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4eca2bd0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:05, skipping insertion in model container
[2024-09-25 11:46:05,896 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:05" (2/2) ...
[2024-09-25 11:46:05,903 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-25 11:46:05,904 INFO  L1541             ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y))
[2024-09-25 11:46:05,904 INFO  L1541             ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main))
[2024-09-25 11:46:05,923 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-25 11:46:06,106 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251]
[2024-09-25 11:46:06,118 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 11:46:06,138 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Global
[2024-09-25 11:46:06,183 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251]
Start Parsing Local
[2024-09-25 11:46:06,190 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 11:46:06,208 INFO  L204         MainTranslator]: Completed translation
[2024-09-25 11:46:06,209 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06 WrapperNode
[2024-09-25 11:46:06,209 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-25 11:46:06,210 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-25 11:46:06,210 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-25 11:46:06,211 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-25 11:46:06,224 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,224 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,232 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,245 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-25 11:46:06,246 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,246 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,249 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,252 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,256 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,257 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,259 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-25 11:46:06,261 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-25 11:46:06,262 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-25 11:46:06,262 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-25 11:46:06,263 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (1/1) ...
[2024-09-25 11:46:06,268 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 11:46:06,277 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3
[2024-09-25 11:46:06,294 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-25 11:46:06,301 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-25 11:46:06,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-25 11:46:06,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-25 11:46:06,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2024-09-25 11:46:06,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-25 11:46:06,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2024-09-25 11:46:06,347 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2024-09-25 11:46:06,347 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2024-09-25 11:46:06,347 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2024-09-25 11:46:06,347 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-25 11:46:06,348 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-25 11:46:06,349 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-25 11:46:06,350 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2024-09-25 11:46:06,350 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2024-09-25 11:46:06,350 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-25 11:46:06,466 INFO  L241             CfgBuilder]: Building ICFG
[2024-09-25 11:46:06,471 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-25 11:46:06,640 INFO  L290             CfgBuilder]: Performing block encoding
[2024-09-25 11:46:06,669 INFO  L312             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-25 11:46:06,670 INFO  L317             CfgBuilder]: Removed 0 assume(true) statements.
[2024-09-25 11:46:06,670 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:06 BoogieIcfgContainer
[2024-09-25 11:46:06,670 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-25 11:46:06,671 INFO  L112        PluginConnector]: ------------------------Referee----------------------------
[2024-09-25 11:46:06,671 INFO  L270        PluginConnector]: Initializing Referee...
[2024-09-25 11:46:06,671 INFO  L274        PluginConnector]: Referee initialized
[2024-09-25 11:46:06,671 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:05" (1/4) ...
[2024-09-25 11:46:06,672 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:06, skipping insertion in model container
[2024-09-25 11:46:06,672 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:05" (2/4) ...
[2024-09-25 11:46:06,673 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:06, skipping insertion in model container
[2024-09-25 11:46:06,675 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:06" (3/4) ...
[2024-09-25 11:46:06,676 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@ff73ab9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:06, skipping insertion in model container
[2024-09-25 11:46:06,676 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:06" (4/4) ...
[2024-09-25 11:46:06,677 INFO  L79         RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:06,681 INFO  L113       InvariantChecker]: Found 0 loops.
[2024-09-25 11:46:06,682 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges.
[2024-09-25 11:46:06,683 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges.
[2024-09-25 11:46:06,683 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges.
[2024-09-25 11:46:06,684 INFO  L131       InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location
[2024-09-25 11:46:06,728 INFO  L314           BlockEncoder]: Initial Icfg 12 locations, 16 edges
[2024-09-25 11:46:06,734 INFO  L264           BlockEncoder]: Using Maximize final states
[2024-09-25 11:46:06,734 INFO  L271           BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-25 11:46:06,735 INFO  L277           BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-25 11:46:06,736 INFO  L172           BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-25 11:46:06,738 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-25 11:46:06,814 INFO  L101     BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding
[2024-09-25 11:46:06,815 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-25 11:46:06,816 INFO  L101     BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-25 11:46:06,816 INFO  L238           BlockEncoder]: Using Create parallel compositions if possible
[2024-09-25 11:46:06,816 INFO  L68        ParallelComposer]: Creating parallel compositions
[2024-09-25 11:46:06,820 INFO  L314           BlockEncoder]: Encoded RCFG 3 locations, 4 edges
[2024-09-25 11:46:06,825 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception:
java.lang.AssertionError: Either subgraph not acyclic or there is a bug
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.<init>(AcyclicSubgraphMerger.java:169)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.<init>(InvariantChecker.java:145)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.<init>(RefereeStarter.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-09-25 11:46:06,832 INFO  L158              Benchmark]: Toolchain (without parser) took 945.75ms. Allocated memory is still 165.7MB. Free memory was 132.0MB in the beginning and 124.2MB in the end (delta: 7.8MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB.
[2024-09-25 11:46:06,833 INFO  L158              Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 11:46:06,833 INFO  L158              Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 11:46:06,834 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-09-25 11:46:06,835 INFO  L158              Benchmark]: Boogie Preprocessor took 49.99ms. Allocated memory is still 165.7MB. Free memory was 118.0MB in the beginning and 116.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 11:46:06,836 INFO  L158              Benchmark]: RCFGBuilder took 409.09ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 132.1MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-25 11:46:06,837 INFO  L158              Benchmark]: Referee took 160.13ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 124.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-25 11:46:06,839 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee:
  - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug
    de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.<init>(AcyclicSubgraphMerger.java:169)
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB.
 * Witness Parser took 0.16ms. Allocated memory is still 165.7MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 322.84ms. Allocated memory is still 165.7MB. Free memory was 131.4MB in the beginning and 118.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 49.99ms. Allocated memory is still 165.7MB. Free memory was 118.0MB in the beginning and 116.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 409.09ms. Allocated memory is still 165.7MB. Free memory was 116.0MB in the beginning and 132.1MB in the end (delta: -16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Referee took 160.13ms. Allocated memory is still 165.7MB. Free memory was 132.1MB in the beginning and 124.2MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-09-25 11:46:06,867 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...

### Bit-precise run ###
This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m
[2024-09-25 11:46:09,037 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-25 11:46:09,123 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf
[2024-09-25 11:46:09,128 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-25 11:46:09,129 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-25 11:46:09,160 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-25 11:46:09,161 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-25 11:46:09,161 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-25 11:46:09,162 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-25 11:46:09,164 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-25 11:46:09,164 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-25 11:46:09,164 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-25 11:46:09,165 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-25 11:46:09,165 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-25 11:46:09,165 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-25 11:46:09,166 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-25 11:46:09,166 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-25 11:46:09,166 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-25 11:46:09,166 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-25 11:46:09,167 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-25 11:46:09,167 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-25 11:46:09,173 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-25 11:46:09,173 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-25 11:46:09,173 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-09-25 11:46:09,173 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-09-25 11:46:09,174 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-25 11:46:09,174 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-09-25 11:46:09,174 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-25 11:46:09,174 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-25 11:46:09,175 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-25 11:46:09,175 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-25 11:46:09,176 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-25 11:46:09,176 INFO  L153        SettingsManager]:  * Future-live optimization=false
[2024-09-25 11:46:09,176 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-25 11:46:09,177 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-25 11:46:09,177 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 11:46:09,177 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-25 11:46:09,178 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-25 11:46:09,178 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-25 11:46:09,178 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-09-25 11:46:09,178 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-09-25 11:46:09,179 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-25 11:46:09,500 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-25 11:46:09,522 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-25 11:46:09,525 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-25 11:46:09,527 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-25 11:46:09,527 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-25 11:46:09,528 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:11,035 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-25 11:46:11,228 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-25 11:46:11,229 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:11,237 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/91504b109/e1d51536ac424e1b8367def3a6792a44/FLAG2cc2206c7
[2024-09-25 11:46:11,612 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/91504b109/e1d51536ac424e1b8367def3a6792a44
[2024-09-25 11:46:11,615 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-25 11:46:11,616 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-25 11:46:11,618 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.v+lhb-reducer.yml/witness-2.1.yml
[2024-09-25 11:46:11,667 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-25 11:46:11,669 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2024-09-25 11:46:11,672 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-25 11:46:11,672 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-25 11:46:11,677 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-25 11:46:11,678 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ...
[2024-09-25 11:46:11,680 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec4ffc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:11, skipping insertion in model container
[2024-09-25 11:46:11,680 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:46:11" (1/2) ...
[2024-09-25 11:46:11,682 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@23a96d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:46:11, skipping insertion in model container
[2024-09-25 11:46:11,682 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:11" (2/2) ...
[2024-09-25 11:46:11,682 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ec4ffc9 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11, skipping insertion in model container
[2024-09-25 11:46:11,682 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:11" (2/2) ...
[2024-09-25 11:46:11,692 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-25 11:46:11,695 INFO  L1541             ArrayList]: Location invariant before [L33-L67] ((main__x < 0) || (0 < main__y))
[2024-09-25 11:46:11,696 INFO  L1541             ArrayList]: Function contract at [L14]: requires null, ensures (__return_main == \old(__return_main))
[2024-09-25 11:46:11,715 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-25 11:46:11,902 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251]
[2024-09-25 11:46:11,910 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 11:46:11,924 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Global
[2024-09-25 11:46:11,965 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251]
Start Parsing Local
[2024-09-25 11:46:11,971 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-25 11:46:11,987 INFO  L204         MainTranslator]: Completed translation
[2024-09-25 11:46:11,988 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11 WrapperNode
[2024-09-25 11:46:11,989 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-25 11:46:11,990 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-25 11:46:11,990 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-25 11:46:11,991 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-25 11:46:12,002 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,002 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,010 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,023 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure main is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-25 11:46:12,023 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,023 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,028 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,032 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,034 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,035 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,041 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-25 11:46:12,042 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-25 11:46:12,042 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-25 11:46:12,042 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-25 11:46:12,044 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (1/1) ...
[2024-09-25 11:46:12,050 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 11:46:12,058 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3
[2024-09-25 11:46:12,074 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-25 11:46:12,077 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-25 11:46:12,123 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-25 11:46:12,123 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-25 11:46:12,124 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2024-09-25 11:46:12,124 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-25 11:46:12,124 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-25 11:46:12,125 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2024-09-25 11:46:12,126 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2024-09-25 11:46:12,126 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-25 11:46:12,126 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2024-09-25 11:46:12,126 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-25 11:46:12,127 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2024-09-25 11:46:12,127 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2024-09-25 11:46:12,127 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-25 11:46:12,206 INFO  L241             CfgBuilder]: Building ICFG
[2024-09-25 11:46:12,208 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-25 11:46:12,352 INFO  L290             CfgBuilder]: Performing block encoding
[2024-09-25 11:46:12,391 INFO  L312             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-25 11:46:12,391 INFO  L317             CfgBuilder]: Removed 0 assume(true) statements.
[2024-09-25 11:46:12,392 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:12 BoogieIcfgContainer
[2024-09-25 11:46:12,392 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-25 11:46:12,392 INFO  L112        PluginConnector]: ------------------------Referee----------------------------
[2024-09-25 11:46:12,392 INFO  L270        PluginConnector]: Initializing Referee...
[2024-09-25 11:46:12,393 INFO  L274        PluginConnector]: Referee initialized
[2024-09-25 11:46:12,393 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 25.09 11:46:11" (1/4) ...
[2024-09-25 11:46:12,394 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 25.09 11:46:12, skipping insertion in model container
[2024-09-25 11:46:12,394 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 25.09 11:46:11" (2/4) ...
[2024-09-25 11:46:12,394 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:12, skipping insertion in model container
[2024-09-25 11:46:12,394 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 25.09 11:46:11" (3/4) ...
[2024-09-25 11:46:12,394 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4d8f2914 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 25.09 11:46:12, skipping insertion in model container
[2024-09-25 11:46:12,395 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:46:12" (4/4) ...
[2024-09-25 11:46:12,395 INFO  L79         RefereeObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c
[2024-09-25 11:46:12,398 INFO  L113       InvariantChecker]: Found 0 loops.
[2024-09-25 11:46:12,399 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 16 edges.
[2024-09-25 11:46:12,399 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 5 edges.
[2024-09-25 11:46:12,399 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 11 edges.
[2024-09-25 11:46:12,400 INFO  L131       InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location
[2024-09-25 11:46:12,444 INFO  L314           BlockEncoder]: Initial Icfg 12 locations, 16 edges
[2024-09-25 11:46:12,445 INFO  L264           BlockEncoder]: Using Maximize final states
[2024-09-25 11:46:12,445 INFO  L271           BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-25 11:46:12,446 INFO  L277           BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-25 11:46:12,448 INFO  L172           BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-25 11:46:12,450 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-25 11:46:12,507 INFO  L101     BaseMinimizeStates]: Removed 28 edges and 9 locations by large block encoding
[2024-09-25 11:46:12,508 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-25 11:46:12,508 INFO  L101     BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-25 11:46:12,509 INFO  L238           BlockEncoder]: Using Create parallel compositions if possible
[2024-09-25 11:46:12,510 INFO  L68        ParallelComposer]: Creating parallel compositions
[2024-09-25 11:46:12,514 INFO  L314           BlockEncoder]: Encoded RCFG 3 locations, 4 edges
[2024-09-25 11:46:12,515 FATAL L?                        ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.referee has thrown an exception:
java.lang.AssertionError: Either subgraph not acyclic or there is a bug
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.<init>(AcyclicSubgraphMerger.java:169)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.InvariantChecker.<init>(InvariantChecker.java:145)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeStarter.<init>(RefereeStarter.java:56)
	at de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver.finish(RefereeObserver.java:80)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
	at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2024-09-25 11:46:12,521 INFO  L158              Benchmark]: Toolchain (without parser) took 851.23ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 34.7MB in the beginning and 51.4MB in the end (delta: -16.7MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB.
[2024-09-25 11:46:12,522 INFO  L158              Benchmark]: CDTParser took 0.12ms. Allocated memory is still 44.0MB. Free memory is still 20.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 11:46:12,522 INFO  L158              Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 11:46:12,523 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 317.24ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 38.6MB in the end (delta: -4.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB.
[2024-09-25 11:46:12,523 INFO  L158              Benchmark]: Boogie Preprocessor took 50.63ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 11:46:12,524 INFO  L158              Benchmark]: RCFGBuilder took 350.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.5MB in the beginning and 59.8MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB.
[2024-09-25 11:46:12,524 INFO  L158              Benchmark]: Referee took 127.07ms. Allocated memory is still 83.9MB. Free memory was 59.8MB in the beginning and 51.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-25 11:46:12,527 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee:
  - ExceptionOrErrorResult: AssertionError: Either subgraph not acyclic or there is a bug
    de.uni_freiburg.informatik.ultimate.plugins.generator.referee: AssertionError: Either subgraph not acyclic or there is a bug: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AcyclicSubgraphMerger.<init>(AcyclicSubgraphMerger.java:169)
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12ms. Allocated memory is still 44.0MB. Free memory is still 20.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * Witness Parser took 0.15ms. Allocated memory is still 65.0MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 317.24ms. Allocated memory is still 65.0MB. Free memory was 34.5MB in the beginning and 38.6MB in the end (delta: -4.1MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 50.63ms. Allocated memory is still 65.0MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 350.13ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 36.5MB in the beginning and 59.8MB in the end (delta: -23.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB.
 * Referee took 127.07ms. Allocated memory is still 83.9MB. Free memory was 59.8MB in the beginning and 51.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-09-25 11:46:12,554 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...