This is Ultimate 0.2.4-tmp.dk.referee-eval-04d6fb3-m
[2024-09-15 20:12:56,988 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-09-15 20:12:57,067 INFO  L114        SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-15 20:12:57,077 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-09-15 20:12:57,077 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-15 20:12:57,110 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-15 20:12:57,111 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-15 20:12:57,111 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-15 20:12:57,112 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-15 20:12:57,113 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-09-15 20:12:57,113 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-15 20:12:57,113 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-15 20:12:57,114 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-15 20:12:57,118 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-09-15 20:12:57,118 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-09-15 20:12:57,118 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-15 20:12:57,119 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-09-15 20:12:57,119 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-09-15 20:12:57,119 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-09-15 20:12:57,119 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-09-15 20:12:57,120 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-09-15 20:12:57,123 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-09-15 20:12:57,124 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-15 20:12:57,124 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-09-15 20:12:57,124 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-09-15 20:12:57,124 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-09-15 20:12:57,125 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-09-15 20:12:57,125 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-09-15 20:12:57,125 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-15 20:12:57,125 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-09-15 20:12:57,126 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-09-15 20:12:57,126 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-09-15 20:12:57,126 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:12:57,126 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-15 20:12:57,133 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-09-15 20:12:57,134 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-15 20:12:57,135 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-09-15 20:12:57,135 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-15 20:12:57,135 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-15 20:12:57,135 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-15 20:12:57,136 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-09-15 20:12:57,136 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-15 20:12:57,136 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-15 20:12:57,429 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-15 20:12:57,448 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-15 20:12:57,451 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-15 20:12:57,453 INFO  L270        PluginConnector]: Initializing Witness Parser...
[2024-09-15 20:12:57,454 INFO  L274        PluginConnector]: Witness Parser initialized
[2024-09-15 20:12:57,455 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/cohendiv-ll_valuebound100.yml/witness-2.1.yml
[2024-09-15 20:12:57,517 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-09-15 20:12:57,517 INFO  L274        PluginConnector]: CDTParser initialized
[2024-09-15 20:12:57,518 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c
[2024-09-15 20:12:59,067 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-09-15 20:12:59,252 INFO  L384              CDTParser]: Found 1 translation units.
[2024-09-15 20:12:59,252 INFO  L180              CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/cohendiv-ll_valuebound100.c
[2024-09-15 20:12:59,258 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/1fc137540/b4dbac23cc1a4fb09556ba5c5158a57e/FLAG116fff1db
[2024-09-15 20:12:59,645 INFO  L435              CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/1fc137540/b4dbac23cc1a4fb09556ba5c5158a57e
[2024-09-15 20:12:59,646 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-15 20:12:59,647 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-09-15 20:12:59,648 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-15 20:12:59,648 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-15 20:12:59,653 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-15 20:12:59,653 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 08:12:57" (1/2) ...
[2024-09-15 20:12:59,654 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f521a8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:12:59, skipping insertion in model container
[2024-09-15 20:12:59,654 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 08:12:57" (1/2) ...
[2024-09-15 20:12:59,656 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@32135f17 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.09 08:12:59, skipping insertion in model container
[2024-09-15 20:12:59,656 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:12:59" (2/2) ...
[2024-09-15 20:12:59,656 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30f521a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59, skipping insertion in model container
[2024-09-15 20:12:59,659 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 08:12:59" (2/2) ...
[2024-09-15 20:12:59,666 INFO  L93    nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-15 20:12:59,667 INFO  L1541             ArrayList]: Loop invariant at [L38-L62] ((((((__int128) q * y) + r) == x) && (((((__int128) q * y) + r) + ((__int128) a * y)) == ((__int128) b + x))) && (1 <= y))
[2024-09-15 20:12:59,667 INFO  L1541             ArrayList]: Loop invariant at [L47-L59] (((((((__int128) q * y) + r) == x) && (1 <= r)) && (((((__int128) q * y) + r) + ((__int128) a * y)) == ((__int128) b + x))) && (1 <= y))
[2024-09-15 20:12:59,670 INFO  L1541             ArrayList]: Function contract at [L14]: requires (\old(cond) != 0), ensures (\old(cond) != 0)
[2024-09-15 20:12:59,671 INFO  L1541             ArrayList]: Function contract at [L11]: requires null, ensures (\old(cond) != 0)
[2024-09-15 20:12:59,689 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-09-15 20:12:59,864 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/cohendiv-ll_valuebound100.c[576,589]
[2024-09-15 20:12:59,888 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:12:59,898 INFO  L200         MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
Start Parsing Global
[2024-09-15 20:12:59,939 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/cohendiv-ll_valuebound100.c[576,589]
Start Parsing Local
Start Parsing Local
[2024-09-15 20:12:59,957 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-09-15 20:12:59,975 INFO  L204         MainTranslator]: Completed translation
[2024-09-15 20:12:59,976 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59 WrapperNode
[2024-09-15 20:12:59,976 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-15 20:12:59,977 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-15 20:12:59,978 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-15 20:12:59,978 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-15 20:12:59,984 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:12:59,989 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,011 INFO  L138                Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57
[2024-09-15 20:13:00,012 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-15 20:13:00,013 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-15 20:13:00,013 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-15 20:13:00,013 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-09-15 20:13:00,022 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,023 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,024 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,037 WARN  L109           MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification
[2024-09-15 20:13:00,038 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,039 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,042 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,049 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,050 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,052 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,054 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-15 20:13:00,059 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-15 20:13:00,059 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-09-15 20:13:00,059 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-09-15 20:13:00,060 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (1/1) ...
[2024-09-15 20:13:00,065 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-15 20:13:00,074 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:00,094 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 20:13:00,096 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 20:13:00,141 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-15 20:13:00,141 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-09-15 20:13:00,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-09-15 20:13:00,141 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-15 20:13:00,142 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-15 20:13:00,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-15 20:13:00,142 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-15 20:13:00,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-15 20:13:00,198 INFO  L242             CfgBuilder]: Building ICFG
[2024-09-15 20:13:00,200 INFO  L268             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-15 20:13:00,353 WARN  L783   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-15 20:13:00,375 INFO  L?                        ?]: Removed 45 outVars from TransFormulas that were not future-live.
[2024-09-15 20:13:00,376 INFO  L291             CfgBuilder]: Performing block encoding
[2024-09-15 20:13:00,398 INFO  L313             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-15 20:13:00,398 INFO  L318             CfgBuilder]: Removed 2 assume(true) statements.
[2024-09-15 20:13:00,399 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:13:00 BoogieIcfgContainer
[2024-09-15 20:13:00,399 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-15 20:13:00,401 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-15 20:13:00,401 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-09-15 20:13:00,406 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-09-15 20:13:00,406 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 08:12:57" (1/4) ...
[2024-09-15 20:13:00,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496cc529 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 15.09 08:13:00, skipping insertion in model container
[2024-09-15 20:13:00,407 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 08:12:59" (2/4) ...
[2024-09-15 20:13:00,407 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496cc529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:13:00, skipping insertion in model container
[2024-09-15 20:13:00,409 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 08:12:59" (3/4) ...
[2024-09-15 20:13:00,410 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496cc529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 08:13:00, skipping insertion in model container
[2024-09-15 20:13:00,410 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 08:13:00" (4/4) ...
[2024-09-15 20:13:00,411 INFO  L112   eAbstractionObserver]: Analyzing ICFG cohendiv-ll_valuebound100.c
[2024-09-15 20:13:00,428 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-15 20:13:00,429 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations.
[2024-09-15 20:13:00,475 INFO  L335      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-15 20:13:00,484 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;@35e65379, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-15 20:13:00,484 INFO  L337      AbstractCegarLoop]: Starting to check reachability of 12 error locations.
[2024-09-15 20:13:00,489 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 44 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-09-15 20:13:00,494 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-15 20:13:00,495 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:00,496 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-15 20:13:00,496 INFO  L399      AbstractCegarLoop]: === Iteration 1 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:00,504 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:00,505 INFO  L85        PathProgramCache]: Analyzing trace with hash 131980187, now seen corresponding path program 1 times
[2024-09-15 20:13:00,514 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:00,514 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730276921]
[2024-09-15 20:13:00,514 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:00,515 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:00,614 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:00,661 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 20:13:00,661 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:00,662 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730276921]
[2024-09-15 20:13:00,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730276921] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:00,662 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:00,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:13:00,664 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391029530]
[2024-09-15 20:13:00,664 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:00,669 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-15 20:13:00,669 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:00,716 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-15 20:13:00,717 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-15 20:13:00,719 INFO  L87              Difference]: Start difference. First operand  has 44 states, 26 states have (on average 1.5) internal successors, (39), 31 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand  has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 20:13:00,746 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:00,746 INFO  L93              Difference]: Finished difference Result 44 states and 53 transitions.
[2024-09-15 20:13:00,747 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-09-15 20:13:00,749 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), 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 5
[2024-09-15 20:13:00,749 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:00,756 INFO  L225             Difference]: With dead ends: 44
[2024-09-15 20:13:00,756 INFO  L226             Difference]: Without dead ends: 42
[2024-09-15 20:13:00,758 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 20:13:00,763 INFO  L434           NwaCegarLoop]: 50 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, 50 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 20:13:00,768 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:13:00,785 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2024-09-15 20:13:00,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2024-09-15 20:13:00,811 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42 states, 25 states have (on average 1.28) internal successors, (32), 30 states have internal predecessors, (32), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-09-15 20:13:00,812 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions.
[2024-09-15 20:13:00,814 INFO  L78                 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 5
[2024-09-15 20:13:00,815 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:00,815 INFO  L474      AbstractCegarLoop]: Abstraction has 42 states and 51 transitions.
[2024-09-15 20:13:00,816 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), 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 20:13:00,816 INFO  L276                IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions.
[2024-09-15 20:13:00,817 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-09-15 20:13:00,817 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:00,818 INFO  L216           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-09-15 20:13:00,819 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-15 20:13:00,819 INFO  L399      AbstractCegarLoop]: === Iteration 2 === Targeting assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:00,820 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:00,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 131980249, now seen corresponding path program 1 times
[2024-09-15 20:13:00,823 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:00,823 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874173128]
[2024-09-15 20:13:00,823 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:00,823 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:00,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:00,949 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 20:13:00,949 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:00,950 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874173128]
[2024-09-15 20:13:00,950 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874173128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:00,950 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:00,950 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-15 20:13:00,951 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092455481]
[2024-09-15 20:13:00,951 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:00,952 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-09-15 20:13:00,952 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:00,953 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-09-15 20:13:00,953 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-15 20:13:00,954 INFO  L87              Difference]: Start difference. First operand 42 states and 51 transitions. Second operand  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 20:13:01,016 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:01,017 INFO  L93              Difference]: Finished difference Result 41 states and 50 transitions.
[2024-09-15 20:13:01,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-15 20:13:01,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 5
[2024-09-15 20:13:01,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:01,020 INFO  L225             Difference]: With dead ends: 41
[2024-09-15 20:13:01,022 INFO  L226             Difference]: Without dead ends: 41
[2024-09-15 20:13:01,022 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-09-15 20:13:01,023 INFO  L434           NwaCegarLoop]: 43 mSDtfsCounter, 1 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:01,024 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 121 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:13:01,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-09-15 20:13:01,033 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-09-15 20:13:01,034 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 25 states have (on average 1.24) internal successors, (31), 29 states have internal predecessors, (31), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9)
[2024-09-15 20:13:01,036 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 50 transitions.
[2024-09-15 20:13:01,036 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 50 transitions. Word has length 5
[2024-09-15 20:13:01,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:01,037 INFO  L474      AbstractCegarLoop]: Abstraction has 41 states and 50 transitions.
[2024-09-15 20:13:01,038 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 20:13:01,038 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 50 transitions.
[2024-09-15 20:13:01,039 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-09-15 20:13:01,039 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:01,039 INFO  L216           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:01,039 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-15 20:13:01,040 INFO  L399      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:01,041 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:01,042 INFO  L85        PathProgramCache]: Analyzing trace with hash -905257559, now seen corresponding path program 1 times
[2024-09-15 20:13:01,042 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:01,043 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643315410]
[2024-09-15 20:13:01,044 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,044 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:01,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:13:01,085 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [253023877]
[2024-09-15 20:13:01,085 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,085 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:01,086 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:01,088 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 20:13:01,089 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 20:13:01,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,152 INFO  L262         TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-09-15 20:13:01,160 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:13:01,266 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-09-15 20:13:01,266 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-15 20:13:01,266 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:01,266 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643315410]
[2024-09-15 20:13:01,267 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:13:01,267 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253023877]
[2024-09-15 20:13:01,267 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [253023877] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:01,267 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:01,267 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-15 20:13:01,268 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449152716]
[2024-09-15 20:13:01,268 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:01,270 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:01,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:01,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:01,271 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:01,271 INFO  L87              Difference]: Start difference. First operand 41 states and 50 transitions. Second operand  has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,405 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:01,406 INFO  L93              Difference]: Finished difference Result 47 states and 59 transitions.
[2024-09-15 20:13:01,406 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-15 20:13:01,406 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 19
[2024-09-15 20:13:01,407 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:01,407 INFO  L225             Difference]: With dead ends: 47
[2024-09-15 20:13:01,407 INFO  L226             Difference]: Without dead ends: 47
[2024-09-15 20:13:01,408 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:01,409 INFO  L434           NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:01,409 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 81 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:01,410 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2024-09-15 20:13:01,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47.
[2024-09-15 20:13:01,416 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 47 states, 28 states have (on average 1.25) internal successors, (35), 33 states have internal predecessors, (35), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-15 20:13:01,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions.
[2024-09-15 20:13:01,420 INFO  L78                 Accepts]: Start accepts. Automaton has 47 states and 59 transitions. Word has length 19
[2024-09-15 20:13:01,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:01,421 INFO  L474      AbstractCegarLoop]: Abstraction has 47 states and 59 transitions.
[2024-09-15 20:13:01,421 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,422 INFO  L276                IsEmpty]: Start isEmpty. Operand 47 states and 59 transitions.
[2024-09-15 20:13:01,422 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-09-15 20:13:01,422 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:01,422 INFO  L216           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:01,440 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 20:13:01,623 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:01,624 INFO  L399      AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:01,624 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:01,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 779692476, now seen corresponding path program 1 times
[2024-09-15 20:13:01,624 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:01,625 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182582434]
[2024-09-15 20:13:01,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,625 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:01,643 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,690 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-15 20:13:01,691 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,695 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-15 20:13:01,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,702 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-15 20:13:01,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,707 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-15 20:13:01,707 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:01,709 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182582434]
[2024-09-15 20:13:01,709 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182582434] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:01,710 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:01,710 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-15 20:13:01,710 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898358128]
[2024-09-15 20:13:01,710 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:01,711 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:13:01,711 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:01,711 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:13:01,712 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:13:01,712 INFO  L87              Difference]: Start difference. First operand 47 states and 59 transitions. Second operand  has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,743 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:01,744 INFO  L93              Difference]: Finished difference Result 46 states and 58 transitions.
[2024-09-15 20:13:01,744 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:13:01,744 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2024-09-15 20:13:01,744 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:01,745 INFO  L225             Difference]: With dead ends: 46
[2024-09-15 20:13:01,745 INFO  L226             Difference]: Without dead ends: 46
[2024-09-15 20:13:01,745 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 20:13:01,746 INFO  L434           NwaCegarLoop]: 40 mSDtfsCounter, 3 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:01,746 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:13:01,747 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2024-09-15 20:13:01,750 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2024-09-15 20:13:01,750 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 46 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 32 states have internal predecessors, (34), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-15 20:13:01,751 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions.
[2024-09-15 20:13:01,751 INFO  L78                 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 24
[2024-09-15 20:13:01,751 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:01,751 INFO  L474      AbstractCegarLoop]: Abstraction has 46 states and 58 transitions.
[2024-09-15 20:13:01,752 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions.
[2024-09-15 20:13:01,752 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-09-15 20:13:01,752 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:01,752 INFO  L216           NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:01,752 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-15 20:13:01,753 INFO  L399      AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:01,753 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:01,753 INFO  L85        PathProgramCache]: Analyzing trace with hash 779692315, now seen corresponding path program 1 times
[2024-09-15 20:13:01,753 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:01,753 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529364029]
[2024-09-15 20:13:01,753 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,753 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:01,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,798 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-15 20:13:01,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,802 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-15 20:13:01,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,806 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-15 20:13:01,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,810 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-09-15 20:13:01,810 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:01,810 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529364029]
[2024-09-15 20:13:01,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529364029] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:01,811 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:01,811 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-15 20:13:01,811 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42053246]
[2024-09-15 20:13:01,811 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:01,811 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-15 20:13:01,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:01,812 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-15 20:13:01,812 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-15 20:13:01,812 INFO  L87              Difference]: Start difference. First operand 46 states and 58 transitions. Second operand  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:01,820 INFO  L93              Difference]: Finished difference Result 44 states and 56 transitions.
[2024-09-15 20:13:01,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-09-15 20:13:01,821 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24
[2024-09-15 20:13:01,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:01,822 INFO  L225             Difference]: With dead ends: 44
[2024-09-15 20:13:01,822 INFO  L226             Difference]: Without dead ends: 43
[2024-09-15 20:13:01,822 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 20:13:01,823 INFO  L434           NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 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 20:13:01,823 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:13:01,824 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-09-15 20:13:01,827 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43.
[2024-09-15 20:13:01,827 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 43 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-15 20:13:01,828 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions.
[2024-09-15 20:13:01,828 INFO  L78                 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 24
[2024-09-15 20:13:01,828 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:01,828 INFO  L474      AbstractCegarLoop]: Abstraction has 43 states and 53 transitions.
[2024-09-15 20:13:01,828 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2024-09-15 20:13:01,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions.
[2024-09-15 20:13:01,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2024-09-15 20:13:01,829 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:01,829 INFO  L216           NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:01,829 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-09-15 20:13:01,830 INFO  L399      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:01,830 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:01,830 INFO  L85        PathProgramCache]: Analyzing trace with hash 240470158, now seen corresponding path program 1 times
[2024-09-15 20:13:01,830 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:01,830 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685227742]
[2024-09-15 20:13:01,830 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:01,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:13:01,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776387035]
[2024-09-15 20:13:01,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:01,859 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:01,859 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:01,861 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 20:13:01,862 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 20:13:01,929 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:01,931 INFO  L262         TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-09-15 20:13:01,934 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:13:02,048 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-09-15 20:13:02,049 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-09-15 20:13:02,050 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:02,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685227742]
[2024-09-15 20:13:02,050 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:13:02,050 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776387035]
[2024-09-15 20:13:02,050 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776387035] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:02,051 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:02,051 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-15 20:13:02,051 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868520862]
[2024-09-15 20:13:02,051 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:02,052 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:02,052 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:02,052 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:02,052 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:02,053 INFO  L87              Difference]: Start difference. First operand 43 states and 53 transitions. Second operand  has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-15 20:13:02,139 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:02,140 INFO  L93              Difference]: Finished difference Result 62 states and 86 transitions.
[2024-09-15 20:13:02,140 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-15 20:13:02,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32
[2024-09-15 20:13:02,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:02,143 INFO  L225             Difference]: With dead ends: 62
[2024-09-15 20:13:02,143 INFO  L226             Difference]: Without dead ends: 62
[2024-09-15 20:13:02,145 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:02,146 INFO  L434           NwaCegarLoop]: 33 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:02,146 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 64 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:02,147 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2024-09-15 20:13:02,153 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 56.
[2024-09-15 20:13:02,154 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 56 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 36 states have internal predecessors, (42), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18)
[2024-09-15 20:13:02,155 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions.
[2024-09-15 20:13:02,155 INFO  L78                 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 32
[2024-09-15 20:13:02,155 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:02,156 INFO  L474      AbstractCegarLoop]: Abstraction has 56 states and 78 transitions.
[2024-09-15 20:13:02,156 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2024-09-15 20:13:02,156 INFO  L276                IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions.
[2024-09-15 20:13:02,157 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-09-15 20:13:02,157 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:02,157 INFO  L216           NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:02,170 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-15 20:13:02,358 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-09-15 20:13:02,359 INFO  L399      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:02,359 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:02,359 INFO  L85        PathProgramCache]: Analyzing trace with hash -1606232253, now seen corresponding path program 1 times
[2024-09-15 20:13:02,360 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:02,360 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531352608]
[2024-09-15 20:13:02,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:02,360 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:02,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,588 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-15 20:13:02,590 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,592 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-15 20:13:02,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,595 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-15 20:13:02,599 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,601 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-09-15 20:13:02,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,615 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-09-15 20:13:02,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,624 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-15 20:13:02,629 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,636 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-15 20:13:02,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,645 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-09-15 20:13:02,646 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,650 INFO  L134       CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-15 20:13:02,651 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:02,651 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531352608]
[2024-09-15 20:13:02,651 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531352608] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:02,651 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:02,651 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-09-15 20:13:02,652 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759873768]
[2024-09-15 20:13:02,652 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:02,652 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:02,652 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:02,653 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:02,653 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:02,653 INFO  L87              Difference]: Start difference. First operand 56 states and 78 transitions. Second operand  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-15 20:13:02,814 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:02,815 INFO  L93              Difference]: Finished difference Result 55 states and 76 transitions.
[2024-09-15 20:13:02,815 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-15 20:13:02,815 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 50
[2024-09-15 20:13:02,816 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:02,817 INFO  L225             Difference]: With dead ends: 55
[2024-09-15 20:13:02,817 INFO  L226             Difference]: Without dead ends: 55
[2024-09-15 20:13:02,818 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:13:02,819 INFO  L434           NwaCegarLoop]: 27 mSDtfsCounter, 14 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:02,820 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 80 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:02,821 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2024-09-15 20:13:02,825 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2024-09-15 20:13:02,826 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 35 states have internal predecessors, (40), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18)
[2024-09-15 20:13:02,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 76 transitions.
[2024-09-15 20:13:02,827 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 76 transitions. Word has length 50
[2024-09-15 20:13:02,827 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:02,828 INFO  L474      AbstractCegarLoop]: Abstraction has 55 states and 76 transitions.
[2024-09-15 20:13:02,828 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-15 20:13:02,828 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 76 transitions.
[2024-09-15 20:13:02,830 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-09-15 20:13:02,830 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:02,831 INFO  L216           NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:02,831 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-09-15 20:13:02,831 INFO  L399      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:02,832 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:02,832 INFO  L85        PathProgramCache]: Analyzing trace with hash 1746405951, now seen corresponding path program 1 times
[2024-09-15 20:13:02,832 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:02,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049551867]
[2024-09-15 20:13:02,832 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:02,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:02,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:13:02,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1230376091]
[2024-09-15 20:13:02,858 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:02,859 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:02,859 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:02,862 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:13:02,864 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-15 20:13:02,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:02,929 INFO  L262         TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-09-15 20:13:02,932 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:13:03,207 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-15 20:13:03,207 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:13:03,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked.
[2024-09-15 20:13:03,466 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:03,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049551867]
[2024-09-15 20:13:03,467 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:13:03,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1230376091]
[2024-09-15 20:13:03,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1230376091] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:13:03,467 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:13:03,467 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8
[2024-09-15 20:13:03,467 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726699835]
[2024-09-15 20:13:03,467 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:03,468 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:03,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:03,468 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:03,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2024-09-15 20:13:03,469 INFO  L87              Difference]: Start difference. First operand 55 states and 76 transitions. Second operand  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-15 20:13:03,538 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:03,538 INFO  L93              Difference]: Finished difference Result 49 states and 69 transitions.
[2024-09-15 20:13:03,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-15 20:13:03,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 51
[2024-09-15 20:13:03,541 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:03,542 INFO  L225             Difference]: With dead ends: 49
[2024-09-15 20:13:03,542 INFO  L226             Difference]: Without dead ends: 48
[2024-09-15 20:13:03,542 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90
[2024-09-15 20:13:03,543 INFO  L434           NwaCegarLoop]: 28 mSDtfsCounter, 3 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:03,543 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 79 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-15 20:13:03,544 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 48 states.
[2024-09-15 20:13:03,546 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 40.
[2024-09-15 20:13:03,547 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40 states, 23 states have (on average 1.0869565217391304) internal successors, (25), 24 states have internal predecessors, (25), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14)
[2024-09-15 20:13:03,551 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions.
[2024-09-15 20:13:03,552 INFO  L78                 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 51
[2024-09-15 20:13:03,552 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:03,552 INFO  L474      AbstractCegarLoop]: Abstraction has 40 states and 53 transitions.
[2024-09-15 20:13:03,552 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-09-15 20:13:03,552 INFO  L276                IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions.
[2024-09-15 20:13:03,553 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-09-15 20:13:03,553 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:03,553 INFO  L216           NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:03,572 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-15 20:13:03,754 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-09-15 20:13:03,754 INFO  L399      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:03,755 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:03,755 INFO  L85        PathProgramCache]: Analyzing trace with hash -794580679, now seen corresponding path program 1 times
[2024-09-15 20:13:03,755 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:03,755 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119861333]
[2024-09-15 20:13:03,755 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:03,755 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:03,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:13:03,776 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1264094664]
[2024-09-15 20:13:03,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:03,777 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:03,777 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:03,780 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:13:03,782 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-15 20:13:03,840 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:03,841 INFO  L262         TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-09-15 20:13:03,846 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:13:04,060 INFO  L134       CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-09-15 20:13:04,060 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:13:04,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-09-15 20:13:04,294 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:04,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119861333]
[2024-09-15 20:13:04,294 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:13:04,294 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264094664]
[2024-09-15 20:13:04,295 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264094664] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:13:04,295 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:13:04,295 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9
[2024-09-15 20:13:04,295 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175309418]
[2024-09-15 20:13:04,295 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:04,296 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:04,296 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:04,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:04,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-15 20:13:04,297 INFO  L87              Difference]: Start difference. First operand 40 states and 53 transitions. Second operand  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-15 20:13:04,361 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:04,361 INFO  L93              Difference]: Finished difference Result 40 states and 53 transitions.
[2024-09-15 20:13:04,362 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-09-15 20:13:04,362 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 56
[2024-09-15 20:13:04,362 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:04,363 INFO  L225             Difference]: With dead ends: 40
[2024-09-15 20:13:04,363 INFO  L226             Difference]: Without dead ends: 40
[2024-09-15 20:13:04,363 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90
[2024-09-15 20:13:04,364 INFO  L434           NwaCegarLoop]: 28 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:04,364 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 46 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:04,365 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2024-09-15 20:13:04,367 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 35.
[2024-09-15 20:13:04,368 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11)
[2024-09-15 20:13:04,368 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 45 transitions.
[2024-09-15 20:13:04,368 INFO  L78                 Accepts]: Start accepts. Automaton has 35 states and 45 transitions. Word has length 56
[2024-09-15 20:13:04,369 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:04,369 INFO  L474      AbstractCegarLoop]: Abstraction has 35 states and 45 transitions.
[2024-09-15 20:13:04,369 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-09-15 20:13:04,369 INFO  L276                IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions.
[2024-09-15 20:13:04,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 65
[2024-09-15 20:13:04,370 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:04,371 INFO  L216           NwaCegarLoop]: trace histogram [7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:04,388 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-15 20:13:04,572 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:04,572 INFO  L399      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:04,573 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:04,573 INFO  L85        PathProgramCache]: Analyzing trace with hash -469516360, now seen corresponding path program 1 times
[2024-09-15 20:13:04,573 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:04,573 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925964572]
[2024-09-15 20:13:04,573 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:04,573 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:04,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,654 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1
[2024-09-15 20:13:04,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,657 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-09-15 20:13:04,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,659 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2024-09-15 20:13:04,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,661 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2024-09-15 20:13:04,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,663 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-09-15 20:13:04,664 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,665 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2024-09-15 20:13:04,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,669 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2024-09-15 20:13:04,670 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,673 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2024-09-15 20:13:04,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,677 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-09-15 20:13:04,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,681 INFO  L381   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2024-09-15 20:13:04,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,685 INFO  L134       CoverageAnalysis]: Checked inductivity of 102 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2024-09-15 20:13:04,685 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:04,685 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925964572]
[2024-09-15 20:13:04,685 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925964572] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-15 20:13:04,686 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-15 20:13:04,686 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-15 20:13:04,686 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475480947]
[2024-09-15 20:13:04,686 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-15 20:13:04,686 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-15 20:13:04,687 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:04,687 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-15 20:13:04,687 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-15 20:13:04,687 INFO  L87              Difference]: Start difference. First operand 35 states and 45 transitions. Second operand  has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-09-15 20:13:04,795 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:04,795 INFO  L93              Difference]: Finished difference Result 49 states and 65 transitions.
[2024-09-15 20:13:04,795 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-09-15 20:13:04,796 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 64
[2024-09-15 20:13:04,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:04,797 INFO  L225             Difference]: With dead ends: 49
[2024-09-15 20:13:04,797 INFO  L226             Difference]: Without dead ends: 43
[2024-09-15 20:13:04,797 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-09-15 20:13:04,798 INFO  L434           NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:04,799 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 108 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:04,799 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 43 states.
[2024-09-15 20:13:04,802 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41.
[2024-09-15 20:13:04,805 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 24 states have internal predecessors, (26), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14)
[2024-09-15 20:13:04,806 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions.
[2024-09-15 20:13:04,807 INFO  L78                 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 64
[2024-09-15 20:13:04,807 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:04,808 INFO  L474      AbstractCegarLoop]: Abstraction has 41 states and 54 transitions.
[2024-09-15 20:13:04,808 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 3 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-09-15 20:13:04,808 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions.
[2024-09-15 20:13:04,809 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 89
[2024-09-15 20:13:04,809 INFO  L208           NwaCegarLoop]: Found error trace
[2024-09-15 20:13:04,809 INFO  L216           NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:04,810 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-09-15 20:13:04,810 INFO  L399      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (and 9 more)] ===
[2024-09-15 20:13:04,810 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2024-09-15 20:13:04,810 INFO  L85        PathProgramCache]: Analyzing trace with hash -471026589, now seen corresponding path program 1 times
[2024-09-15 20:13:04,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-15 20:13:04,811 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770003200]
[2024-09-15 20:13:04,811 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:04,811 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-15 20:13:04,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-09-15 20:13:04,849 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984177562]
[2024-09-15 20:13:04,849 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-15 20:13:04,849 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-15 20:13:04,850 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-15 20:13:04,851 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-15 20:13:04,853 INFO  L327       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-15 20:13:04,913 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-15 20:13:04,917 INFO  L262         TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-09-15 20:13:04,919 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2024-09-15 20:13:05,131 INFO  L134       CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked.
[2024-09-15 20:13:05,131 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2024-09-15 20:13:05,328 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-15 20:13:05,328 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770003200]
[2024-09-15 20:13:05,329 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-09-15 20:13:05,329 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984177562]
[2024-09-15 20:13:05,329 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984177562] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-15 20:13:05,329 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-09-15 20:13:05,329 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2024-09-15 20:13:05,329 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009289901]
[2024-09-15 20:13:05,329 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-09-15 20:13:05,330 INFO  L551      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-09-15 20:13:05,330 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-15 20:13:05,330 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-09-15 20:13:05,330 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2024-09-15 20:13:05,331 INFO  L87              Difference]: Start difference. First operand 41 states and 54 transitions. Second operand  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2024-09-15 20:13:05,478 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-15 20:13:05,479 INFO  L93              Difference]: Finished difference Result 58 states and 81 transitions.
[2024-09-15 20:13:05,479 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-09-15 20:13:05,479 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 88
[2024-09-15 20:13:05,480 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-15 20:13:05,480 INFO  L225             Difference]: With dead ends: 58
[2024-09-15 20:13:05,480 INFO  L226             Difference]: Without dead ends: 0
[2024-09-15 20:13:05,480 INFO  L433           NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2024-09-15 20:13:05,481 INFO  L434           NwaCegarLoop]: 27 mSDtfsCounter, 19 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-15 20:13:05,481 INFO  L435           NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 119 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-15 20:13:05,481 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-15 20:13:05,481 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-15 20:13:05,482 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 20:13:05,482 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-15 20:13:05,482 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 88
[2024-09-15 20:13:05,482 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-09-15 20:13:05,482 INFO  L474      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-15 20:13:05,482 INFO  L475      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14)
[2024-09-15 20:13:05,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-15 20:13:05,482 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-15 20:13:05,486 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 12 remaining)
[2024-09-15 20:13:05,486 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION (10 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONPRE_CONDITION (9 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONPRE_CONDITION (7 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONPRE_CONDITION (6 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONPRE_CONDITION (5 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONPRE_CONDITION (4 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8REQUIRES_VIOLATIONPRE_CONDITION (3 of 12 remaining)
[2024-09-15 20:13:05,487 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION (2 of 12 remaining)
[2024-09-15 20:13:05,488 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining)
[2024-09-15 20:13:05,488 INFO  L785   garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION (0 of 12 remaining)
[2024-09-15 20:13:05,505 INFO  L552       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-09-15 20:13:05,688 WARN  L456      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-09-15 20:13:05,691 INFO  L408         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-15 20:13:05,693 INFO  L165   ceAbstractionStarter]: Computing trace abstraction results
[2024-09-15 20:13:05,694 INFO  L469   ceAbstractionStarter]: Automizer considered 2 witness invariants
[2024-09-15 20:13:05,694 INFO  L470   ceAbstractionStarter]: WitnessConsidered=2
[2024-09-15 20:13:05,695 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 08:13:05 BoogieIcfgContainer
[2024-09-15 20:13:05,695 INFO  L131        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-15 20:13:05,696 INFO  L158              Benchmark]: Toolchain (without parser) took 6048.95ms. Allocated memory was 65.0MB in the beginning and 100.7MB in the end (delta: 35.7MB). Free memory was 36.9MB in the beginning and 62.3MB in the end (delta: -25.4MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,696 INFO  L158              Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 23.5MB in the beginning and 23.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:13:05,696 INFO  L158              Benchmark]: CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory is still 31.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-15 20:13:05,696 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 328.32ms. Allocated memory is still 65.0MB. Free memory was 36.7MB in the beginning and 39.2MB in the end (delta: -2.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,696 INFO  L158              Benchmark]: Boogie Procedure Inliner took 34.68ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 37.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,697 INFO  L158              Benchmark]: Boogie Preprocessor took 45.21ms. Allocated memory is still 65.0MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,697 INFO  L158              Benchmark]: RCFGBuilder took 340.44ms. Allocated memory is still 65.0MB. Free memory was 36.0MB in the beginning and 38.5MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,697 INFO  L158              Benchmark]: TraceAbstraction took 5294.69ms. Allocated memory was 65.0MB in the beginning and 100.7MB in the end (delta: 35.7MB). Free memory was 37.6MB in the beginning and 62.3MB in the end (delta: -24.7MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB.
[2024-09-15 20:13:05,699 INFO  L338   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * Witness Parser took 0.19ms. Allocated memory is still 48.2MB. Free memory was 23.5MB in the beginning and 23.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB.
 * CDTParser took 0.10ms. Allocated memory is still 48.2MB. Free memory is still 31.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 328.32ms. Allocated memory is still 65.0MB. Free memory was 36.7MB in the beginning and 39.2MB in the end (delta: -2.5MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 34.68ms. Allocated memory is still 65.0MB. Free memory was 39.2MB in the beginning and 37.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 45.21ms. Allocated memory is still 65.0MB. Free memory was 37.6MB in the beginning and 36.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 340.44ms. Allocated memory is still 65.0MB. Free memory was 36.0MB in the beginning and 38.5MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
 * TraceAbstraction took 5294.69ms. Allocated memory was 65.0MB in the beginning and 100.7MB in the end (delta: 35.7MB). Free memory was 37.6MB in the beginning and 62.3MB in the end (delta: -24.7MB). Peak memory consumption was 10.7MB. 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: 38]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 47]: invariant of correctness witness holds
    For all program executions holds that invariant of correctness witness holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 14]: procedure precondition always holds
    For all program executions holds that procedure precondition always holds at this location
  - PositiveResult [Line: 11]: procedure postcondition always holds
    For all program executions holds that procedure postcondition always holds at this location
  - PositiveResult [Line: 17]: 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: 14]: procedure postcondition always holds
    For all program executions holds that procedure postcondition always holds at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 3 procedures, 44 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 11, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 114 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 88 mSDsluCounter, 906 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 519 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 404 IncrementalHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 387 mSDtfsCounter, 404 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 390 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=6, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 21 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 512 ConstructedInterpolants, 0 QuantifiedInterpolants, 1809 SizeOfPredicates, 4 NumberOfNonLiveVariables, 648 ConjunctsInSsa, 75 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 689/703 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
    12 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2024-09-15 20:13:05,719 INFO  L540       MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...