This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m
[2024-09-21 12:47:41,978 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-21 12:47:42,049 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf
[2024-09-21 12:47:42,056 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-21 12:47:42,057 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-21 12:47:42,082 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-21 12:47:42,083 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-21 12:47:42,084 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-21 12:47:42,084 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-21 12:47:42,086 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-21 12:47:42,086 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-21 12:47:42,086 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-21 12:47:42,087 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-21 12:47:42,087 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-21 12:47:42,090 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-21 12:47:42,090 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-21 12:47:42,091 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-21 12:47:42,091 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-21 12:47:42,091 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-21 12:47:42,092 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-21 12:47:42,092 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-21 12:47:42,093 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-21 12:47:42,093 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-21 12:47:42,093 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-21 12:47:42,093 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-21 12:47:42,094 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-21 12:47:42,094 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-21 12:47:42,094 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-21 12:47:42,094 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-21 12:47:42,095 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-21 12:47:42,095 INFO  L153        SettingsManager]:  * Future-live optimization=false
[2024-09-21 12:47:42,095 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-21 12:47:42,096 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-21 12:47:42,099 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:47:42,101 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-21 12:47:42,102 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-21 12:47:42,102 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-21 12:47:42,102 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-21 12:47:42,102 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-21 12:47:42,103 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-21 12:47:42,103 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-21 12:47:42,104 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-21 12:47:42,105 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-21 12:47:42,105 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-21 12:47:42,359 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-21 12:47:42,385 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-21 12:47:42,389 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-21 12:47:42,391 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-21 12:47:42,392 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-21 12:47:42,394 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml
[2024-09-21 12:47:42,498 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-21 12:47:42,498 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-21 12:47:42,499 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:43,904 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-21 12:47:44,108 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-21 12:47:44,109 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:44,117 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/72842f3a8/df6f85a263a741c49c38c1a98099892a/FLAGb2fa1fffd
[2024-09-21 12:47:44,131 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/72842f3a8/df6f85a263a741c49c38c1a98099892a
[2024-09-21 12:47:44,132 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-21 12:47:44,133 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2024-09-21 12:47:44,135 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-21 12:47:44,135 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-21 12:47:44,140 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-21 12:47:44,141 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 12:47:42" (1/2) ...
[2024-09-21 12:47:44,143 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65406891 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,144 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 12:47:42" (1/2) ...
[2024-09-21 12:47:44,145 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39e87451 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,146 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ...
[2024-09-21 12:47:44,146 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65406891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,146 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:44" (2/2) ...
[2024-09-21 12:47:44,156 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-21 12:47:44,157 INFO  L1541             ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144))
[2024-09-21 12:47:44,175 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-21 12:47:44,338 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
[2024-09-21 12:47:44,345 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:47:44,357 INFO  L200         MainTranslator]: Completed pre-run
[2024-09-21 12:47:44,371 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
Start Parsing Local
[2024-09-21 12:47:44,397 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:47:44,415 INFO  L204         MainTranslator]: Completed translation
[2024-09-21 12:47:44,416 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44 WrapperNode
[2024-09-21 12:47:44,416 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-21 12:47:44,417 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-21 12:47:44,417 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-21 12:47:44,417 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-21 12:47:44,430 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,431 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,437 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,453 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-21 12:47:44,453 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,454 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,459 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,461 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,478 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,479 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,483 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-21 12:47:44,484 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-21 12:47:44,485 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-21 12:47:44,485 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-21 12:47:44,486 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (1/1) ...
[2024-09-21 12:47:44,491 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:47:44,500 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3
[2024-09-21 12:47:44,561 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 12:47:44,578 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 12:47:44,622 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-21 12:47:44,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-21 12:47:44,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2024-09-21 12:47:44,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-21 12:47:44,623 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-21 12:47:44,623 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-21 12:47:44,624 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int#0
[2024-09-21 12:47:44,625 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int#0
[2024-09-21 12:47:44,625 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-21 12:47:44,680 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-21 12:47:44,682 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-21 12:47:44,777 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-21 12:47:44,812 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-21 12:47:44,812 INFO  L318             CfgBuilder]: Removed 0 assume(true) statements.
[2024-09-21 12:47:44,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:44 BoogieIcfgContainer
[2024-09-21 12:47:44,813 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-21 12:47:44,813 INFO  L112        PluginConnector]: ------------------------Referee----------------------------
[2024-09-21 12:47:44,814 INFO  L270        PluginConnector]: Initializing Referee...
[2024-09-21 12:47:44,814 INFO  L274        PluginConnector]: Referee initialized
[2024-09-21 12:47:44,815 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 12:47:42" (1/4) ...
[2024-09-21 12:47:44,815 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,815 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:44" (2/4) ...
[2024-09-21 12:47:44,815 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,815 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:44" (3/4) ...
[2024-09-21 12:47:44,816 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6940000f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:44, skipping insertion in model container
[2024-09-21 12:47:44,816 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:44" (4/4) ...
[2024-09-21 12:47:44,817 INFO  L79         RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:44,819 INFO  L113       InvariantChecker]: Found 0 loops.
[2024-09-21 12:47:44,820 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges.
[2024-09-21 12:47:44,820 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges.
[2024-09-21 12:47:44,820 INFO  L131       InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location
[2024-09-21 12:47:44,857 INFO  L314           BlockEncoder]: Initial Icfg 6 locations, 6 edges
[2024-09-21 12:47:44,858 INFO  L264           BlockEncoder]: Using Maximize final states
[2024-09-21 12:47:44,858 INFO  L271           BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-21 12:47:44,859 INFO  L277           BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-21 12:47:44,861 INFO  L172           BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-21 12:47:44,864 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-21 12:47:44,888 INFO  L101     BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding
[2024-09-21 12:47:44,889 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-21 12:47:44,889 INFO  L101     BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-21 12:47:44,889 INFO  L238           BlockEncoder]: Using Create parallel compositions if possible
[2024-09-21 12:47:44,890 INFO  L68        ParallelComposer]: Creating parallel compositions
[2024-09-21 12:47:44,890 INFO  L314           BlockEncoder]: Encoded RCFG 3 locations, 4 edges
[2024-09-21 12:47:44,892 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)
[2024-09-21 12:47:44,898 INFO  L158              Benchmark]: Toolchain (without parser) took 764.85ms. Allocated memory is still 174.1MB. Free memory was 103.4MB in the beginning and 127.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:44,899 INFO  L158              Benchmark]: Witness Parser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:44,899 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:44,900 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 282.05ms. Allocated memory is still 174.1MB. Free memory was 103.2MB in the beginning and 90.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-09-21 12:47:44,900 INFO  L158              Benchmark]: Boogie Preprocessor took 66.16ms. Allocated memory is still 174.1MB. Free memory was 90.0MB in the beginning and 145.3MB in the end (delta: -55.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB.
[2024-09-21 12:47:44,901 INFO  L158              Benchmark]: RCFGBuilder took 328.54ms. Allocated memory is still 174.1MB. Free memory was 145.3MB in the beginning and 134.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-21 12:47:44,901 INFO  L158              Benchmark]: Referee took 83.52ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 127.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-09-21 12:47:44,905 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:
 * Witness Parser took 0.33ms. Allocated memory is still 174.1MB. Free memory is still 129.7MB. There was no memory consumed. Max. memory is 16.1GB.
 * CDTParser took 0.10ms. Allocated memory is still 174.1MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 282.05ms. Allocated memory is still 174.1MB. Free memory was 103.2MB in the beginning and 90.0MB in the end (delta: 13.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 66.16ms. Allocated memory is still 174.1MB. Free memory was 90.0MB in the beginning and 145.3MB in the end (delta: -55.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB.
 * RCFGBuilder took 328.54ms. Allocated memory is still 174.1MB. Free memory was 145.3MB in the beginning and 134.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * Referee took 83.52ms. Allocated memory is still 174.1MB. Free memory was 134.0MB in the beginning and 127.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-09-21 12:47:44,941 INFO  L540       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...

### Bit-precise run ###
This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m
[2024-09-21 12:47:47,173 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-21 12:47:47,253 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf
[2024-09-21 12:47:47,258 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-21 12:47:47,259 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-21 12:47:47,292 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-21 12:47:47,292 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-21 12:47:47,293 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-21 12:47:47,294 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-21 12:47:47,295 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-21 12:47:47,295 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-21 12:47:47,296 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-21 12:47:47,298 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-21 12:47:47,299 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-21 12:47:47,299 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-21 12:47:47,300 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-21 12:47:47,300 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-21 12:47:47,300 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-21 12:47:47,301 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-21 12:47:47,301 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-21 12:47:47,304 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-21 12:47:47,305 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-21 12:47:47,305 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-21 12:47:47,305 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-09-21 12:47:47,305 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-09-21 12:47:47,306 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-21 12:47:47,306 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-09-21 12:47:47,306 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-21 12:47:47,306 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-21 12:47:47,307 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-21 12:47:47,307 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-21 12:47:47,307 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-21 12:47:47,307 INFO  L153        SettingsManager]:  * Future-live optimization=false
[2024-09-21 12:47:47,308 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-21 12:47:47,308 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-21 12:47:47,311 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:47:47,311 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-21 12:47:47,312 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-21 12:47:47,312 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-21 12:47:47,312 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-09-21 12:47:47,312 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-09-21 12:47:47,313 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-21 12:47:47,313 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-21 12:47:47,313 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-21 12:47:47,313 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-21 12:47:47,314 INFO  L153        SettingsManager]:  * Logic for external solver=AUFBV
[2024-09-21 12:47:47,314 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-21 12:47:47,637 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-21 12:47:47,659 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-21 12:47:47,663 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-21 12:47:47,664 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-21 12:47:47,664 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-21 12:47:47,666 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:49,271 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-21 12:47:49,489 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-21 12:47:49,490 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:49,500 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/0b147e6ea/b1f2cd014752472580673d7f4a164f04/FLAG16e12bb10
[2024-09-21 12:47:49,861 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/0b147e6ea/b1f2cd014752472580673d7f4a164f04
[2024-09-21 12:47:49,863 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-21 12:47:49,864 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-21 12:47:49,866 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/gsv2008.c.i.p+cfa-reducer.yml/witness-2.1.yml
[2024-09-21 12:47:49,922 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-21 12:47:49,924 INFO  L133        ToolchainWalker]: Walking toolchain with 4 elements.
[2024-09-21 12:47:49,927 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-21 12:47:49,928 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-21 12:47:49,933 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-21 12:47:49,934 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ...
[2024-09-21 12:47:49,934 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227aec66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:49, skipping insertion in model container
[2024-09-21 12:47:49,935 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 12:47:49" (1/2) ...
[2024-09-21 12:47:49,940 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@580b3624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 12:47:49, skipping insertion in model container
[2024-09-21 12:47:49,940 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 12:47:49" (2/2) ...
[2024-09-21 12:47:49,941 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227aec66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:49, skipping insertion in model container
[2024-09-21 12:47:49,941 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 12:47:49" (2/2) ...
[2024-09-21 12:47:49,956 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-21 12:47:49,957 INFO  L1541             ArrayList]: Location invariant before [L32-L57] (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144))
[2024-09-21 12:47:49,977 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-21 12:47:50,153 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
[2024-09-21 12:47:50,160 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:47:50,183 INFO  L200         MainTranslator]: Completed pre-run
[2024-09-21 12:47:50,206 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002]
Start Parsing Local
[2024-09-21 12:47:50,234 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-21 12:47:50,254 INFO  L204         MainTranslator]: Completed translation
[2024-09-21 12:47:50,255 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50 WrapperNode
[2024-09-21 12:47:50,255 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-21 12:47:50,257 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-21 12:47:50,257 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-21 12:47:50,257 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-21 12:47:50,271 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,271 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,278 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,296 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-21 12:47:50,297 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,297 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,307 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,309 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,310 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,313 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,314 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-21 12:47:50,316 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-21 12:47:50,316 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-21 12:47:50,316 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-21 12:47:50,317 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (1/1) ...
[2024-09-21 12:47:50,322 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-21 12:47:50,332 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3
[2024-09-21 12:47:50,347 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 12:47:50,350 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 12:47:50,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-21 12:47:50,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-21 12:47:50,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure reach_error
[2024-09-21 12:47:50,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-21 12:47:50,397 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2024-09-21 12:47:50,397 INFO  L130     BoogieDeclarations]: Found specification of procedure abort
[2024-09-21 12:47:50,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __assert_fail
[2024-09-21 12:47:50,398 INFO  L130     BoogieDeclarations]: Found specification of procedure reach_error
[2024-09-21 12:47:50,398 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-21 12:47:50,398 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-21 12:47:50,398 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-21 12:47:50,400 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2024-09-21 12:47:50,400 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2024-09-21 12:47:50,400 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-21 12:47:50,400 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-09-21 12:47:50,401 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-21 12:47:50,401 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0
[2024-09-21 12:47:50,401 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0
[2024-09-21 12:47:50,401 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-21 12:47:50,484 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-21 12:47:50,487 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-21 12:47:50,629 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-21 12:47:50,677 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-21 12:47:50,677 INFO  L318             CfgBuilder]: Removed 0 assume(true) statements.
[2024-09-21 12:47:50,678 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:50 BoogieIcfgContainer
[2024-09-21 12:47:50,678 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-21 12:47:50,679 INFO  L112        PluginConnector]: ------------------------Referee----------------------------
[2024-09-21 12:47:50,679 INFO  L270        PluginConnector]: Initializing Referee...
[2024-09-21 12:47:50,680 INFO  L274        PluginConnector]: Referee initialized
[2024-09-21 12:47:50,680 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 12:47:49" (1/4) ...
[2024-09-21 12:47:50,681 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 12:47:50, skipping insertion in model container
[2024-09-21 12:47:50,681 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 12:47:49" (2/4) ...
[2024-09-21 12:47:50,682 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:50, skipping insertion in model container
[2024-09-21 12:47:50,683 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 12:47:50" (3/4) ...
[2024-09-21 12:47:50,683 INFO  L204        PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@2ff6563e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 12:47:50, skipping insertion in model container
[2024-09-21 12:47:50,683 INFO  L184        PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 12:47:50" (4/4) ...
[2024-09-21 12:47:50,684 INFO  L79         RefereeObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c
[2024-09-21 12:47:50,688 INFO  L113       InvariantChecker]: Found 0 loops.
[2024-09-21 12:47:50,689 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges.
[2024-09-21 12:47:50,690 INFO  L373       InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr1ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 8 edges.
[2024-09-21 12:47:50,690 INFO  L131       InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location
[2024-09-21 12:47:50,728 INFO  L314           BlockEncoder]: Initial Icfg 6 locations, 6 edges
[2024-09-21 12:47:50,732 INFO  L264           BlockEncoder]: Using Maximize final states
[2024-09-21 12:47:50,733 INFO  L271           BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-21 12:47:50,733 INFO  L277           BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-21 12:47:50,734 INFO  L172           BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-21 12:47:50,736 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-21 12:47:50,766 INFO  L101     BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding
[2024-09-21 12:47:50,767 INFO  L71     MaximizeFinalStates]: 0 new accepting states
[2024-09-21 12:47:50,767 INFO  L101     BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-21 12:47:50,767 INFO  L238           BlockEncoder]: Using Create parallel compositions if possible
[2024-09-21 12:47:50,768 INFO  L68        ParallelComposer]: Creating parallel compositions
[2024-09-21 12:47:50,769 INFO  L314           BlockEncoder]: Encoded RCFG 3 locations, 4 edges
[2024-09-21 12:47:50,770 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)
[2024-09-21 12:47:50,776 INFO  L158              Benchmark]: Toolchain (without parser) took 851.14ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 34.5MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:50,777 INFO  L158              Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:50,777 INFO  L158              Benchmark]: Witness Parser took 0.26ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 34.6MB in the end (delta: 157.2kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-21 12:47:50,778 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 329.30ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 35.2MB in the end (delta: -2.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB.
[2024-09-21 12:47:50,779 INFO  L158              Benchmark]: Boogie Preprocessor took 57.80ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-21 12:47:50,779 INFO  L158              Benchmark]: RCFGBuilder took 362.48ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 39.9MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-21 12:47:50,780 INFO  L158              Benchmark]: Referee took 95.60ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 34.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-09-21 12:47:50,783 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 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.3MB. There was no memory consumed. Max. memory is 16.1GB.
 * Witness Parser took 0.26ms. Allocated memory is still 67.1MB. Free memory was 34.8MB in the beginning and 34.6MB in the end (delta: 157.2kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 329.30ms. Allocated memory is still 67.1MB. Free memory was 32.7MB in the beginning and 35.2MB in the end (delta: -2.5MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 57.80ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 362.48ms. Allocated memory is still 67.1MB. Free memory was 32.9MB in the beginning and 39.9MB in the end (delta: -7.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Referee took 95.60ms. Allocated memory is still 67.1MB. Free memory was 39.9MB in the beginning and 34.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-09-21 12:47:50,816 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...