This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m
[2024-09-15 20:23:38,285 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-15 20:23:38,370 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-15 20:23:38,375 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-15 20:23:38,376 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-15 20:23:38,406 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-15 20:23:38,406 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-15 20:23:38,407 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-15 20:23:38,407 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-15 20:23:38,409 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-15 20:23:38,409 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-15 20:23:38,410 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-15 20:23:38,410 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-15 20:23:38,410 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-15 20:23:38,411 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-15 20:23:38,411 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-15 20:23:38,411 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-15 20:23:38,411 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-15 20:23:38,412 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-15 20:23:38,412 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-15 20:23:38,412 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-15 20:23:38,413 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-15 20:23:38,413 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-15 20:23:38,415 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-15 20:23:38,416 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-15 20:23:38,416 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-15 20:23:38,416 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-15 20:23:38,416 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-15 20:23:38,417 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-15 20:23:38,417 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-15 20:23:38,417 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-15 20:23:38,417 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-15 20:23:38,417 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:23:38,418 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-15 20:23:38,418 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-15 20:23:38,418 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-15 20:23:38,418 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-15 20:23:38,419 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-15 20:23:38,420 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-15 20:23:38,420 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-15 20:23:38,420 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-15 20:23:38,421 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-15 20:23:38,421 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-15 20:23:38,710 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-15 20:23:38,728 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-15 20:23:38,729 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-15 20:23:38,730 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-15 20:23:38,730 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-15 20:23:38,731 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c
[2024-09-15 20:23:40,268 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-15 20:23:40,455 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-15 20:23:40,456 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c
[2024-09-15 20:23:40,466 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a6de6bf88/bb93aac658904b36a328ee8bcd395a3f/FLAGcc9dbe673
[2024-09-15 20:23:40,849 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a6de6bf88/bb93aac658904b36a328ee8bcd395a3f
[2024-09-15 20:23:40,851 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-15 20:23:40,852 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-15 20:23:40,853 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/ps2-ll_valuebound2.yml/witness-2.1.yml
[2024-09-15 20:23:40,901 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-15 20:23:40,902 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-15 20:23:40,905 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-15 20:23:40,905 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-15 20:23:40,918 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-15 20:23:40,919 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:40" (1/2) ...
[2024-09-15 20:23:40,920 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef5382e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:40, skipping insertion in model container
[2024-09-15 20:23:40,920 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:23:40" (1/2) ...
[2024-09-15 20:23:40,925 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@12fde539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:23:40, skipping insertion in model container
[2024-09-15 20:23:40,926 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:40" (2/2) ...
[2024-09-15 20:23:40,926 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef5382e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:40, skipping insertion in model container
[2024-09-15 20:23:40,926 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:40" (2/2) ...
[2024-09-15 20:23:40,933 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-15 20:23:40,936 INFO  L1541             ArrayList]: Loop invariant at [L27-L36] (((__int128) x * 2) == (y + ((__int128) y * y)))
[2024-09-15 20:23:40,936 INFO  L1541             ArrayList]: Function contract at [L9]: requires (1 <= \old(cond)), ensures (1 <= \old(cond))
[2024-09-15 20:23:40,954 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-15 20:23:41,101 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/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467]
[2024-09-15 20:23:41,127 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:23:41,145 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-15 20:23:41,181 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/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467]
Start Parsing Local
[2024-09-15 20:23:41,191 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:23:41,206 INFO  L204         MainTranslator]: Completed translation
[2024-09-15 20:23:41,207 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:23:41 WrapperNode
[2024-09-15 20:23:41,208 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-15 20:23:41,209 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-15 20:23:41,209 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-15 20:23:41,209 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-15 20:23:41,215 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,220 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,238 INFO  L138                Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37
[2024-09-15 20:23:41,238 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-15 20:23:41,239 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-15 20:23:41,240 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-15 20:23:41,240 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-15 20:23:41,248 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,249 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,251 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,263 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
[2024-09-15 20:23:41,264 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,264 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,267 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,273 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,274 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,275 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,277 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-15 20:23:41,280 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-15 20:23:41,280 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-15 20:23:41,280 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-15 20:23:41,281 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 15.09 08:23:41" (1/1) ...
[2024-09-15 20:23:41,286 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:23:41,295 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:41,309 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)
[2024-09-15 20:23:41,315 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
[2024-09-15 20:23:41,364 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-15 20:23:41,365 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-15 20:23:41,365 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-15 20:23:41,365 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-15 20:23:41,366 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-15 20:23:41,366 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-15 20:23:41,432 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-15 20:23:41,435 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-15 20:23:41,562 WARN  L783   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-15 20:23:41,585 INFO  L?                        ?]: Removed 16 outVars from TransFormulas that were not future-live.
[2024-09-15 20:23:41,589 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-15 20:23:41,622 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-15 20:23:41,622 INFO  L318             CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-15 20:23:41,623 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:41 BoogieIcfgContainer
[2024-09-15 20:23:41,623 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-15 20:23:41,625 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-15 20:23:41,625 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-15 20:23:41,628 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-15 20:23:41,628 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:23:40" (1/4) ...
[2024-09-15 20:23:41,629 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa4ff4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:23:41, skipping insertion in model container
[2024-09-15 20:23:41,629 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.09 08:23:40" (2/4) ...
[2024-09-15 20:23:41,630 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa4ff4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:23:41, skipping insertion in model container
[2024-09-15 20:23:41,630 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 15.09 08:23:41" (3/4) ...
[2024-09-15 20:23:41,630 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14aa4ff4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:23:41, skipping insertion in model container
[2024-09-15 20:23:41,631 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:23:41" (4/4) ...
[2024-09-15 20:23:41,632 INFO  L112   eAbstractionObserver]: Analyzing ICFG ps2-ll_valuebound2.c
[2024-09-15 20:23:41,650 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-15 20:23:41,650 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2024-09-15 20:23:41,696 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-15 20:23:41,703 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;@4f23c0c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-15 20:23:41,704 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2024-09-15 20:23:41,707 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 20 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 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)
[2024-09-15 20:23:41,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-15 20:23:41,713 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:23:41,714 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-15 20:23:41,714 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)] ===
[2024-09-15 20:23:41,719 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:41,719 INFO  L85        PathProgramCache]: Analyzing trace with hash 2567121, now seen corresponding path program 1 times
[2024-09-15 20:23:41,727 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:41,728 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400847370]
[2024-09-15 20:23:41,728 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:41,729 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:41,827 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:41,874 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:41,875 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:41,875 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400847370]
[2024-09-15 20:23:41,876 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400847370] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:41,876 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:41,876 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:23:41,878 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330423807]
[2024-09-15 20:23:41,879 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:41,882 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-15 20:23:41,883 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:41,914 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-15 20:23:41,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-15 20:23:41,917 INFO  L87              Difference]: Start difference. First operand  has 20 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 16 states have internal predecessors, (21), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2024-09-15 20:23:41,945 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:41,945 INFO  L93              Difference]: Finished difference Result 20 states and 21 transitions.
[2024-09-15 20:23:41,946 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-15 20:23:41,947 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4
[2024-09-15 20:23:41,948 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:41,954 INFO  L225             Difference]: With dead ends: 20
[2024-09-15 20:23:41,954 INFO  L226             Difference]: Without dead ends: 18
[2024-09-15 20:23:41,956 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-15 20:23:41,960 INFO  L434           NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:41,961 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:41,976 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2024-09-15 20:23:41,988 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2024-09-15 20:23:41,989 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-15 20:23:41,990 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions.
[2024-09-15 20:23:41,992 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 4
[2024-09-15 20:23:41,992 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:41,992 INFO  L474      AbstractCegarLoop]: Abstraction has 18 states and 19 transitions.
[2024-09-15 20:23:41,993 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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)
[2024-09-15 20:23:41,993 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions.
[2024-09-15 20:23:41,993 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-09-15 20:23:41,993 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:23:41,994 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-09-15 20:23:41,994 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-15 20:23:41,995 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-15 20:23:41,995 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:41,997 INFO  L85        PathProgramCache]: Analyzing trace with hash 2569043, now seen corresponding path program 1 times
[2024-09-15 20:23:41,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:41,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052469607]
[2024-09-15 20:23:41,998 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:41,998 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:42,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:23:42,029 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1960230860]
[2024-09-15 20:23:42,031 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:42,031 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:42,031 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:42,033 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)
[2024-09-15 20:23:42,035 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-15 20:23:42,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:42,087 INFO  L262         TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-09-15 20:23:42,094 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:23:42,136 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:42,137 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-15 20:23:42,137 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:42,137 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052469607]
[2024-09-15 20:23:42,138 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:23:42,138 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960230860]
[2024-09-15 20:23:42,138 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960230860] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:42,139 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:42,139 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:23:42,139 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705406572]
[2024-09-15 20:23:42,140 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:42,140 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:42,140 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:42,141 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:42,141 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:42,141 INFO  L87              Difference]: Start difference. First operand 18 states and 19 transitions. Second operand  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-09-15 20:23:42,196 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:42,196 INFO  L93              Difference]: Finished difference Result 23 states and 26 transitions.
[2024-09-15 20:23:42,197 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:23:42,197 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4
[2024-09-15 20:23:42,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:42,198 INFO  L225             Difference]: With dead ends: 23
[2024-09-15 20:23:42,198 INFO  L226             Difference]: Without dead ends: 23
[2024-09-15 20:23:42,199 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
[2024-09-15 20:23:42,200 INFO  L434           NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:42,201 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:42,202 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-09-15 20:23:42,207 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2024-09-15 20:23:42,208 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 23 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 19 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:42,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2024-09-15 20:23:42,209 INFO  L78                 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 4
[2024-09-15 20:23:42,209 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:42,209 INFO  L474      AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2024-09-15 20:23:42,210 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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)
[2024-09-15 20:23:42,210 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2024-09-15 20:23:42,210 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-15 20:23:42,210 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:23:42,211 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:42,228 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-15 20:23:42,414 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:42,415 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)] ===
[2024-09-15 20:23:42,416 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:42,416 INFO  L85        PathProgramCache]: Analyzing trace with hash -1746326295, now seen corresponding path program 1 times
[2024-09-15 20:23:42,416 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:42,417 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175146860]
[2024-09-15 20:23:42,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:42,417 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:42,438 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:42,507 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:42,508 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:42,508 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175146860]
[2024-09-15 20:23:42,508 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175146860] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:42,509 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:42,509 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-15 20:23:42,509 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485060308]
[2024-09-15 20:23:42,509 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:42,510 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:42,510 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:42,510 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:42,511 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:42,511 INFO  L87              Difference]: Start difference. First operand 23 states and 26 transitions. Second operand  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-09-15 20:23:42,524 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:42,524 INFO  L93              Difference]: Finished difference Result 21 states and 24 transitions.
[2024-09-15 20:23:42,526 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:23:42,526 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 9
[2024-09-15 20:23:42,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:42,527 INFO  L225             Difference]: With dead ends: 21
[2024-09-15 20:23:42,527 INFO  L226             Difference]: Without dead ends: 21
[2024-09-15 20:23:42,527 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:42,528 INFO  L434           NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 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
[2024-09-15 20:23:42,529 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:42,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-09-15 20:23:42,532 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21.
[2024-09-15 20:23:42,532 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-15 20:23:42,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2024-09-15 20:23:42,533 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9
[2024-09-15 20:23:42,533 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:42,533 INFO  L474      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2024-09-15 20:23:42,534 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-09-15 20:23:42,534 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2024-09-15 20:23:42,534 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-09-15 20:23:42,534 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:23:42,534 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:42,535 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-09-15 20:23:42,535 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-15 20:23:42,535 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:42,535 INFO  L85        PathProgramCache]: Analyzing trace with hash -1746326134, now seen corresponding path program 1 times
[2024-09-15 20:23:42,536 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:42,536 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495448179]
[2024-09-15 20:23:42,536 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:42,536 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:42,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:42,596 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:42,596 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:42,596 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495448179]
[2024-09-15 20:23:42,597 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495448179] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:23:42,597 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:23:42,597 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:23:42,597 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012899040]
[2024-09-15 20:23:42,597 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:42,598 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:42,598 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:42,598 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:42,599 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:23:42,599 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-09-15 20:23:42,620 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:42,620 INFO  L93              Difference]: Finished difference Result 20 states and 23 transitions.
[2024-09-15 20:23:42,621 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:23:42,621 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 9
[2024-09-15 20:23:42,622 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:42,622 INFO  L225             Difference]: With dead ends: 20
[2024-09-15 20:23:42,622 INFO  L226             Difference]: Without dead ends: 19
[2024-09-15 20:23:42,622 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
[2024-09-15 20:23:42,623 INFO  L434           NwaCegarLoop]: 12 mSDtfsCounter, 1 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:42,624 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:42,624 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2024-09-15 20:23:42,626 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2024-09-15 20:23:42,626 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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)
[2024-09-15 20:23:42,627 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions.
[2024-09-15 20:23:42,627 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 9
[2024-09-15 20:23:42,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:42,627 INFO  L474      AbstractCegarLoop]: Abstraction has 19 states and 20 transitions.
[2024-09-15 20:23:42,627 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2024-09-15 20:23:42,628 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions.
[2024-09-15 20:23:42,628 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-09-15 20:23:42,628 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:23:42,628 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:23:42,629 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-15 20:23:42,629 INFO  L399      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 2 more)] ===
[2024-09-15 20:23:42,629 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:23:42,630 INFO  L85        PathProgramCache]: Analyzing trace with hash 137018522, now seen corresponding path program 1 times
[2024-09-15 20:23:42,630 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:23:42,630 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346301691]
[2024-09-15 20:23:42,630 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:42,631 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:23:42,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:23:42,650 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1627685103]
[2024-09-15 20:23:42,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:23:42,650 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:42,652 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:23:42,655 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:23:42,661 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-15 20:23:42,731 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:23:42,732 INFO  L262         TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-09-15 20:23:42,735 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:23:42,831 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-15 20:23:42,832 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:23:42,885 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-09-15 20:23:42,885 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:23:42,885 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346301691]
[2024-09-15 20:23:42,885 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:23:42,886 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627685103]
[2024-09-15 20:23:42,886 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627685103] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:23:42,886 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:23:42,886 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4
[2024-09-15 20:23:42,887 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203839344]
[2024-09-15 20:23:42,887 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:23:42,887 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:23:42,887 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:23:42,891 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:23:42,891 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:23:42,893 INFO  L87              Difference]: Start difference. First operand 19 states and 20 transitions. Second operand  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-15 20:23:42,916 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:23:42,916 INFO  L93              Difference]: Finished difference Result 16 states and 17 transitions.
[2024-09-15 20:23:42,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:23:42,920 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2024-09-15 20:23:42,920 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:23:42,920 INFO  L225             Difference]: With dead ends: 16
[2024-09-15 20:23:42,920 INFO  L226             Difference]: Without dead ends: 0
[2024-09-15 20:23:42,921 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:23:42,922 INFO  L434           NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:23:42,922 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 12 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:23:42,924 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-15 20:23:42,924 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-15 20:23:42,924 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)
[2024-09-15 20:23:42,925 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-15 20:23:42,925 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2024-09-15 20:23:42,927 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:23:42,927 INFO  L474      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-15 20:23:42,928 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-15 20:23:42,928 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-15 20:23:42,928 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-15 20:23:42,931 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 5 remaining)
[2024-09-15 20:23:42,934 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (3 of 5 remaining)
[2024-09-15 20:23:42,935 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (2 of 5 remaining)
[2024-09-15 20:23:42,935 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2024-09-15 20:23:42,935 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 5 remaining)
[2024-09-15 20:23:42,953 INFO  L540       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-15 20:23:43,136 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:23:43,139 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2024-09-15 20:23:43,141 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-09-15 20:23:43,143 INFO  L469   ceAbstractionStarter]: Automizer considered 1 witness invariants
[2024-09-15 20:23:43,143 INFO  L470   ceAbstractionStarter]: WitnessConsidered=1
[2024-09-15 20:23:43,144 INFO  L201        PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:23:43 BoogieIcfgContainer
[2024-09-15 20:23:43,145 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-15 20:23:43,145 INFO  L158              Benchmark]: Toolchain (without parser) took 2243.24ms. Allocated memory was 54.5MB in the beginning and 81.8MB in the end (delta: 27.3MB). Free memory was 21.9MB in the beginning and 47.4MB in the end (delta: -25.4MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB.
[2024-09-15 20:23:43,146 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:43,146 INFO  L158              Benchmark]: Witness Parser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 23.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:43,146 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 302.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 21.7MB in the beginning and 35.2MB in the end (delta: -13.5MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB.
[2024-09-15 20:23:43,147 INFO  L158              Benchmark]: Boogie Procedure Inliner took 29.94ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:23:43,147 INFO  L158              Benchmark]: Boogie Preprocessor took 40.47ms. Allocated memory is still 67.1MB. Free memory was 33.8MB in the beginning and 32.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:23:43,147 INFO  L158              Benchmark]: RCFGBuilder took 342.50ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 38.0MB in the end (delta: -5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2024-09-15 20:23:43,148 INFO  L158              Benchmark]: TraceAbstraction took 1520.15ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.4MB in the beginning and 47.4MB in the end (delta: -10.0MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB.
[2024-09-15 20:23:43,151 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 31.4MB. There was no memory consumed. Max. memory is 16.1GB.
 * Witness Parser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 23.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 302.95ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 21.7MB in the beginning and 35.2MB in the end (delta: -13.5MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 29.94ms. Allocated memory is still 67.1MB. Free memory was 35.2MB in the beginning and 33.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB.
 * Boogie Preprocessor took 40.47ms. Allocated memory is still 67.1MB. Free memory was 33.8MB in the beginning and 32.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 342.50ms. Allocated memory is still 67.1MB. Free memory was 32.2MB in the beginning and 38.0MB in the end (delta: -5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
 * TraceAbstraction took 1520.15ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 37.4MB in the beginning and 47.4MB in the end (delta: -10.0MB). Peak memory consumption was 3.7MB. 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: 27]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 9]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 9]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 12]: 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: 9]: 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, 20 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 105 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 67 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=2, 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, 5 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, 7 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 127 SizeOfPredicates, 0 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1/2 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!
[2024-09-15 20:23:43,177 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...