This is Ultimate 0.2.4-dev-5189fb6-m
[2024-09-13 05:16:41,492 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-13 05:16:41,545 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-13 05:16:41,549 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-13 05:16:41,549 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-13 05:16:41,569 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-13 05:16:41,570 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-13 05:16:41,570 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-13 05:16:41,571 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-13 05:16:41,571 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-13 05:16:41,571 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-13 05:16:41,572 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-13 05:16:41,572 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-13 05:16:41,573 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-13 05:16:41,573 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-13 05:16:41,573 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-13 05:16:41,574 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-13 05:16:41,574 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-13 05:16:41,574 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-13 05:16:41,575 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-13 05:16:41,575 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-13 05:16:41,576 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-13 05:16:41,576 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-13 05:16:41,576 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-13 05:16:41,577 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-13 05:16:41,577 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-13 05:16:41,577 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-13 05:16:41,578 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-13 05:16:41,578 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-13 05:16:41,578 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-13 05:16:41,579 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-13 05:16:41,579 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-13 05:16:41,579 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 05:16:41,580 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-13 05:16:41,580 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-13 05:16:41,580 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-13 05:16:41,580 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-13 05:16:41,581 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-13 05:16:41,581 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-13 05:16:41,581 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-13 05:16:41,581 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-13 05:16:41,582 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-13 05:16:41,582 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/automizer/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-13 05:16:41,821 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-13 05:16:41,837 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-13 05:16:41,840 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-13 05:16:41,841 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-13 05:16:41,841 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-13 05:16:41,842 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/mine2017-ex4.7.i
[2024-09-13 05:16:43,165 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-13 05:16:43,354 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-13 05:16:43,354 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/mine2017-ex4.7.i
[2024-09-13 05:16:43,361 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/8f93506a0/d7041ecefa7447ebb4286a2452848245/FLAGbc7709dfe
[2024-09-13 05:16:43,374 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/8f93506a0/d7041ecefa7447ebb4286a2452848245
[2024-09-13 05:16:43,377 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-13 05:16:43,378 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-13 05:16:43,378 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/mine2017-ex4.7.yml/witness-2.1.yml
[2024-09-13 05:16:43,423 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-13 05:16:43,424 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-13 05:16:43,427 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-13 05:16:43,427 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-13 05:16:43,432 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-13 05:16:43,433 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:16:43" (1/2) ...
[2024-09-13 05:16:43,435 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba68e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:16:43, skipping insertion in model container
[2024-09-13 05:16:43,435 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 05:16:43" (1/2) ...
[2024-09-13 05:16:43,437 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@11c34428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 05:16:43, skipping insertion in model container
[2024-09-13 05:16:43,437 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:16:43" (2/2) ...
[2024-09-13 05:16:43,437 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ba68e8b and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:16:43, skipping insertion in model container
[2024-09-13 05:16:43,438 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:16:43" (2/2) ...
[2024-09-13 05:16:43,446 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-13 05:16:43,449 INFO  L1541             ArrayList]: Loop invariant at [L17-L25] ((0 <= x) && (x <= 40))
[2024-09-13 05:16:43,450 INFO  L1541             ArrayList]: Function contract at [L13]: requires (\old(cond) != 0), ensures (\old(cond) != 0)
[2024-09-13 05:16:43,467 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-13 05:16:43,651 WARN  L247   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/mine2017-ex4.7.i[812,825]
[2024-09-13 05:16:43,665 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-13 05:16:43,673 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-13 05:16:43,714 WARN  L247   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/mine2017-ex4.7.i[812,825]
Start Parsing Local
[2024-09-13 05:16:43,721 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-13 05:16:43,737 INFO  L204         MainTranslator]: Completed translation
[2024-09-13 05:16:43,738 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:16:43 WrapperNode
[2024-09-13 05:16:43,738 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-13 05:16:43,739 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-13 05:16:43,740 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-13 05:16:43,740 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-13 05:16:43,747 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,754 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,770 INFO  L138                Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31
[2024-09-13 05:16:43,771 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-13 05:16:43,771 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-13 05:16:43,772 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-13 05:16:43,772 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-13 05:16:43,781 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,782 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,787 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,798 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-13 05:16:43,802 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,803 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,805 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,809 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,812 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,813 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,814 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-13 05:16:43,816 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-13 05:16:43,817 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-13 05:16:43,817 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-13 05:16:43,818 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 13.09 05:16:43" (1/1) ...
[2024-09-13 05:16:43,823 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 05:16:43,832 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 05:16:43,848 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-09-13 05:16:43,853 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-09-13 05:16:43,898 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-13 05:16:43,899 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-13 05:16:43,899 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-13 05:16:43,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-13 05:16:43,899 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-13 05:16:43,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-13 05:16:43,950 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-13 05:16:43,952 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-13 05:16:44,043 WARN  L783   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-13 05:16:44,070 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-09-13 05:16:44,070 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-13 05:16:44,090 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-13 05:16:44,090 INFO  L318             CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-13 05:16:44,091 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:16:44 BoogieIcfgContainer
[2024-09-13 05:16:44,091 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-13 05:16:44,093 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-13 05:16:44,093 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-13 05:16:44,096 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-13 05:16:44,096 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.09 05:16:43" (1/4) ...
[2024-09-13 05:16:44,097 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.09 05:16:44, skipping insertion in model container
[2024-09-13 05:16:44,097 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 05:16:43" (2/4) ...
[2024-09-13 05:16:44,097 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4a03 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:16:44, skipping insertion in model container
[2024-09-13 05:16:44,097 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 05:16:43" (3/4) ...
[2024-09-13 05:16:44,097 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@262a4a03 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 13.09 05:16:44, skipping insertion in model container
[2024-09-13 05:16:44,098 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 05:16:44" (4/4) ...
[2024-09-13 05:16:44,099 INFO  L112   eAbstractionObserver]: Analyzing ICFG mine2017-ex4.7.i
[2024-09-13 05:16:44,112 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-13 05:16:44,113 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2024-09-13 05:16:44,156 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-13 05:16:44,164 INFO  L336      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3c353402, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-13 05:16:44,164 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-09-13 05:16:44,168 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 17 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-13 05:16:44,173 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-09-13 05:16:44,175 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-13 05:16:44,175 INFO  L216           NwaCegarLoop]: trace histogram [1, 1]
[2024-09-13 05:16:44,176 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 05:16:44,182 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 05:16:44,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 2732, now seen corresponding path program 1 times
[2024-09-13 05:16:44,195 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 05:16:44,196 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657517140]
[2024-09-13 05:16:44,199 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 05:16:44,200 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 05:16:44,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,391 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 05:16:44,391 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 05:16:44,392 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657517140]
[2024-09-13 05:16:44,392 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657517140] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 05:16:44,392 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 05:16:44,393 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-09-13 05:16:44,394 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685086200]
[2024-09-13 05:16:44,395 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 05:16:44,399 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 05:16:44,399 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 05:16:44,425 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 05:16:44,426 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,428 INFO  L87              Difference]: Start difference. First operand  has 21 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 17 states have internal predecessors, (22), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,481 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 05:16:44,481 INFO  L93              Difference]: Finished difference Result 29 states and 36 transitions.
[2024-09-13 05:16:44,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-13 05:16:44,484 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2024-09-13 05:16:44,485 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 05:16:44,489 INFO  L225             Difference]: With dead ends: 29
[2024-09-13 05:16:44,489 INFO  L226             Difference]: Without dead ends: 26
[2024-09-13 05:16:44,491 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,493 INFO  L434           NwaCegarLoop]: 19 mSDtfsCounter, 6 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 05:16:44,494 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 05:16:44,516 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 26 states.
[2024-09-13 05:16:44,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26.
[2024-09-13 05:16:44,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 26 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-13 05:16:44,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions.
[2024-09-13 05:16:44,531 INFO  L78                 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 2
[2024-09-13 05:16:44,531 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-13 05:16:44,531 INFO  L474      AbstractCegarLoop]: Abstraction has 26 states and 32 transitions.
[2024-09-13 05:16:44,531 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,531 INFO  L276                IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions.
[2024-09-13 05:16:44,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-13 05:16:44,532 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-13 05:16:44,532 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 05:16:44,533 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-13 05:16:44,533 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 05:16:44,534 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 05:16:44,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -836763044, now seen corresponding path program 1 times
[2024-09-13 05:16:44,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 05:16:44,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483322167]
[2024-09-13 05:16:44,534 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 05:16:44,535 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 05:16:44,553 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,606 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 05:16:44,606 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 05:16:44,606 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483322167]
[2024-09-13 05:16:44,607 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483322167] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 05:16:44,607 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 05:16:44,607 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-13 05:16:44,607 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550629605]
[2024-09-13 05:16:44,607 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 05:16:44,608 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 05:16:44,608 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 05:16:44,609 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 05:16:44,609 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,609 INFO  L87              Difference]: Start difference. First operand 26 states and 32 transitions. Second operand  has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 05:16:44,640 INFO  L93              Difference]: Finished difference Result 25 states and 31 transitions.
[2024-09-13 05:16:44,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-13 05:16:44,640 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-09-13 05:16:44,641 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 05:16:44,641 INFO  L225             Difference]: With dead ends: 25
[2024-09-13 05:16:44,641 INFO  L226             Difference]: Without dead ends: 25
[2024-09-13 05:16:44,641 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,644 INFO  L434           NwaCegarLoop]: 16 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 05:16:44,645 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 05:16:44,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2024-09-13 05:16:44,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25.
[2024-09-13 05:16:44,648 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 19 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-13 05:16:44,649 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions.
[2024-09-13 05:16:44,650 INFO  L78                 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 8
[2024-09-13 05:16:44,650 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-13 05:16:44,650 INFO  L474      AbstractCegarLoop]: Abstraction has 25 states and 31 transitions.
[2024-09-13 05:16:44,651 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,651 INFO  L276                IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions.
[2024-09-13 05:16:44,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2024-09-13 05:16:44,653 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-13 05:16:44,653 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 05:16:44,654 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-13 05:16:44,654 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 05:16:44,654 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 05:16:44,654 INFO  L85        PathProgramCache]: Analyzing trace with hash -836763205, now seen corresponding path program 1 times
[2024-09-13 05:16:44,655 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 05:16:44,655 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134439596]
[2024-09-13 05:16:44,655 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 05:16:44,655 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 05:16:44,665 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,716 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-13 05:16:44,716 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 05:16:44,716 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134439596]
[2024-09-13 05:16:44,717 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134439596] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 05:16:44,717 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-13 05:16:44,717 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-13 05:16:44,717 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566878840]
[2024-09-13 05:16:44,720 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 05:16:44,720 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-13 05:16:44,721 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 05:16:44,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-13 05:16:44,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,721 INFO  L87              Difference]: Start difference. First operand 25 states and 31 transitions. Second operand  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 05:16:44,736 INFO  L93              Difference]: Finished difference Result 23 states and 29 transitions.
[2024-09-13 05:16:44,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-13 05:16:44,740 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8
[2024-09-13 05:16:44,740 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 05:16:44,740 INFO  L225             Difference]: With dead ends: 23
[2024-09-13 05:16:44,741 INFO  L226             Difference]: Without dead ends: 23
[2024-09-13 05:16:44,741 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-13 05:16:44,742 INFO  L434           NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 05:16:44,742 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 05:16:44,743 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-09-13 05:16:44,747 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2024-09-13 05:16:44,747 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-09-13 05:16:44,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions.
[2024-09-13 05:16:44,748 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 8
[2024-09-13 05:16:44,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-13 05:16:44,748 INFO  L474      AbstractCegarLoop]: Abstraction has 23 states and 29 transitions.
[2024-09-13 05:16:44,749 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:44,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions.
[2024-09-13 05:16:44,751 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-09-13 05:16:44,751 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-13 05:16:44,751 INFO  L216           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-13 05:16:44,753 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-13 05:16:44,753 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-13 05:16:44,754 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-13 05:16:44,754 INFO  L85        PathProgramCache]: Analyzing trace with hash 1793567362, now seen corresponding path program 1 times
[2024-09-13 05:16:44,755 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-13 05:16:44,755 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419161170]
[2024-09-13 05:16:44,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 05:16:44,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-13 05:16:44,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,862 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4
[2024-09-13 05:16:44,866 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,873 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-09-13 05:16:44,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-13 05:16:44,886 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-13 05:16:44,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419161170]
[2024-09-13 05:16:44,886 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419161170] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-13 05:16:44,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002155447]
[2024-09-13 05:16:44,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-13 05:16:44,886 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 05:16:44,887 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-13 05:16:44,890 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-13 05:16:44,893 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-13 05:16:44,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-13 05:16:44,952 INFO  L262         TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-09-13 05:16:44,957 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-13 05:16:45,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-13 05:16:45,021 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-13 05:16:45,021 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2002155447] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-13 05:16:45,021 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-13 05:16:45,021 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2024-09-13 05:16:45,021 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261044284]
[2024-09-13 05:16:45,022 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-13 05:16:45,022 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-13 05:16:45,022 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-13 05:16:45,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-13 05:16:45,026 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-09-13 05:16:45,026 INFO  L87              Difference]: Start difference. First operand 23 states and 29 transitions. Second operand  has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 05:16:45,068 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-13 05:16:45,069 INFO  L93              Difference]: Finished difference Result 20 states and 26 transitions.
[2024-09-13 05:16:45,069 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-13 05:16:45,070 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18
[2024-09-13 05:16:45,070 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-13 05:16:45,070 INFO  L225             Difference]: With dead ends: 20
[2024-09-13 05:16:45,071 INFO  L226             Difference]: Without dead ends: 0
[2024-09-13 05:16:45,072 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-09-13 05:16:45,073 INFO  L434           NwaCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-13 05:16:45,073 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 28 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-13 05:16:45,074 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-13 05:16:45,074 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-13 05:16:45,074 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-09-13 05:16:45,078 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-13 05:16:45,078 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2024-09-13 05:16:45,078 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-13 05:16:45,079 INFO  L474      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-13 05:16:45,079 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2024-09-13 05:16:45,079 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-13 05:16:45,079 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-13 05:16:45,081 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining)
[2024-09-13 05:16:45,082 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (3 of 5 remaining)
[2024-09-13 05:16:45,082 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (2 of 5 remaining)
[2024-09-13 05:16:45,084 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-09-13 05:16:45,084 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 5 remaining)
[2024-09-13 05:16:45,101 INFO  L540       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-09-13 05:16:45,288 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-13 05:16:45,291 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-09-13 05:16:45,294 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-09-13 05:16:45,296 INFO  L469   ceAbstractionStarter]: Automizer considered 1 witness invariants
[2024-09-13 05:16:45,296 INFO  L470   ceAbstractionStarter]: WitnessConsidered=1
[2024-09-13 05:16:45,298 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.09 05:16:45 BoogieIcfgContainer
[2024-09-13 05:16:45,298 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-13 05:16:45,298 INFO  L158              Benchmark]: Toolchain (without parser) took 1874.31ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 67.7MB in the beginning and 120.3MB in the end (delta: -52.7MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 05:16:45,298 INFO  L158              Benchmark]: CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory was 90.0MB in the beginning and 89.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 05:16:45,299 INFO  L158              Benchmark]: Witness Parser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 05:16:45,299 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 311.88ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 67.5MB in the beginning and 150.4MB in the end (delta: -82.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB.
[2024-09-13 05:16:45,299 INFO  L158              Benchmark]: Boogie Procedure Inliner took 31.27ms. Allocated memory is still 182.5MB. Free memory was 150.4MB in the beginning and 149.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-13 05:16:45,299 INFO  L158              Benchmark]: Boogie Preprocessor took 44.11ms. Allocated memory is still 182.5MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-13 05:16:45,300 INFO  L158              Benchmark]: RCFGBuilder took 274.71ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 135.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-13 05:16:45,301 INFO  L158              Benchmark]: TraceAbstraction took 1204.95ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 120.3MB in the end (delta: 14.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
[2024-09-13 05:16:45,303 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.20ms. Allocated memory is still 138.4MB. Free memory was 90.0MB in the beginning and 89.8MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB.
 * Witness Parser took 0.20ms. Allocated memory is still 138.4MB. Free memory is still 69.6MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 311.88ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 67.5MB in the beginning and 150.4MB in the end (delta: -82.8MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 31.27ms. Allocated memory is still 182.5MB. Free memory was 150.4MB in the beginning and 149.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 44.11ms. Allocated memory is still 182.5MB. Free memory was 149.3MB in the beginning and 147.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 274.71ms. Allocated memory is still 182.5MB. Free memory was 147.2MB in the beginning and 135.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1204.95ms. Allocated memory is still 182.5MB. Free memory was 134.6MB in the beginning and 120.3MB in the end (delta: 14.3MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 17]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 13]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 13]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 13]: a call to reach_error is unreachable
    For all program executions holds that a call to reach_error is unreachable at this location
  - PositiveResult [Line: 13]: procedure postcondition always holds
    For all program executions holds that procedure postcondition always holds at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 2 procedures, 21 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 69 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 9/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    5 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-13 05:16:45,324 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...