./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_7-1.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 6908dde5
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-6908dde-m
[2024-09-25 00:08:37,275 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-25 00:08:37,349 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-25 00:08:37,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-25 00:08:37,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-25 00:08:37,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-25 00:08:37,398 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-25 00:08:37,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-25 00:08:37,399 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-25 00:08:37,401 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-25 00:08:37,402 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-25 00:08:37,402 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-25 00:08:37,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-25 00:08:37,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-25 00:08:37,409 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-25 00:08:37,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-25 00:08:37,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-25 00:08:37,410 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-25 00:08:37,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-25 00:08:37,410 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-25 00:08:37,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-25 00:08:37,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-25 00:08:37,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-25 00:08:37,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-25 00:08:37,414 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-25 00:08:37,415 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-25 00:08:37,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-25 00:08:37,415 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-25 00:08:37,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-25 00:08:37,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-25 00:08:37,416 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-25 00:08:37,416 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-25 00:08:37,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 00:08:37,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-25 00:08:37,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-25 00:08:37,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-25 00:08:37,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-25 00:08:37,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-25 00:08:37,418 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-25 00:08:37,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-25 00:08:37,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-25 00:08:37,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-25 00:08:37,420 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-25 00:08:37,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-25 00:08:37,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-25 00:08:37,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-25 00:08:37,721 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-25 00:08:37,722 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-25 00:08:37,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/recursive-simple/fibo_7-1.c
[2024-09-25 00:08:39,232 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-25 00:08:39,429 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-25 00:08:39,430 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursive-simple/fibo_7-1.c
[2024-09-25 00:08:39,438 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/143731475/0aedf0e8361a4bdabcf90c8c47a02d1e/FLAG0e943d633
[2024-09-25 00:08:39,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/143731475/0aedf0e8361a4bdabcf90c8c47a02d1e
[2024-09-25 00:08:39,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-25 00:08:39,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-25 00:08:39,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-25 00:08:39,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-25 00:08:39,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-25 00:08:39,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:08:39" (1/1) ...
[2024-09-25 00:08:39,869 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62ae5d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:39, skipping insertion in model container
[2024-09-25 00:08:39,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:08:39" (1/1) ...
[2024-09-25 00:08:39,908 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-25 00:08:40,068 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/recursive-simple/fibo_7-1.c[741,754]
[2024-09-25 00:08:40,075 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-25 00:08:40,086 INFO L200 MainTranslator]: Completed pre-run
[2024-09-25 00:08:40,102 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/recursive-simple/fibo_7-1.c[741,754]
[2024-09-25 00:08:40,103 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-25 00:08:40,133 INFO L204 MainTranslator]: Completed translation
[2024-09-25 00:08:40,134 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40 WrapperNode
[2024-09-25 00:08:40,134 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-25 00:08:40,135 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-25 00:08:40,135 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-25 00:08:40,135 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-25 00:08:40,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,152 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,160 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-25 00:08:40,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-25 00:08:40,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-25 00:08:40,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-25 00:08:40,162 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-25 00:08:40,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,173 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,190 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-09-25 00:08:40,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,195 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-25 00:08:40,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-25 00:08:40,203 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-25 00:08:40,203 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-25 00:08:40,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (1/1) ...
[2024-09-25 00:08:40,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-25 00:08:40,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:40,236 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)
[2024-09-25 00:08:40,239 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
[2024-09-25 00:08:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-25 00:08:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-25 00:08:40,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-25 00:08:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-25 00:08:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-25 00:08:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-25 00:08:40,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-25 00:08:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-25 00:08:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2024-09-25 00:08:40,282 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2024-09-25 00:08:40,336 INFO L241 CfgBuilder]: Building ICFG
[2024-09-25 00:08:40,337 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-25 00:08:40,435 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-09-25 00:08:40,435 INFO L290 CfgBuilder]: Performing block encoding
[2024-09-25 00:08:40,454 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-25 00:08:40,454 INFO L317 CfgBuilder]: Removed 0 assume(true) statements.
[2024-09-25 00:08:40,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:08:40 BoogieIcfgContainer
[2024-09-25 00:08:40,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-25 00:08:40,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-25 00:08:40,458 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-25 00:08:40,461 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-25 00:08:40,461 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:08:39" (1/3) ...
[2024-09-25 00:08:40,462 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2a4cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:08:40, skipping insertion in model container
[2024-09-25 00:08:40,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:08:40" (2/3) ...
[2024-09-25 00:08:40,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2a4cf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:08:40, skipping insertion in model container
[2024-09-25 00:08:40,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:08:40" (3/3) ...
[2024-09-25 00:08:40,465 INFO L112 eAbstractionObserver]: Analyzing ICFG fibo_7-1.c
[2024-09-25 00:08:40,482 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-25 00:08:40,483 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-25 00:08:40,535 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-25 00:08:40,542 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=All, 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;@7317b94, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-25 00:08:40,543 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-25 00:08:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-09-25 00:08:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-09-25 00:08:40,553 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:40,554 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:40,554 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:40,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:40,559 INFO L85 PathProgramCache]: Analyzing trace with hash 358193300, now seen corresponding path program 1 times
[2024-09-25 00:08:40,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:40,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792175524]
[2024-09-25 00:08:40,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:40,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:40,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:40,814 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-25 00:08:40,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:40,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792175524]
[2024-09-25 00:08:40,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792175524] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 00:08:40,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 00:08:40,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 00:08:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714527762]
[2024-09-25 00:08:40,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 00:08:40,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 00:08:40,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:40,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 00:08:40,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 00:08:40,924 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-25 00:08:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:41,032 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions.
[2024-09-25 00:08:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 00:08:41,038 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13
[2024-09-25 00:08:41,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:41,047 INFO L225 Difference]: With dead ends: 35
[2024-09-25 00:08:41,048 INFO L226 Difference]: Without dead ends: 23
[2024-09-25 00:08:41,051 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 00:08:41,056 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 10 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:41,057 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 57 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-09-25 00:08:41,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21.
[2024-09-25 00:08:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-09-25 00:08:41,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions.
[2024-09-25 00:08:41,105 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13
[2024-09-25 00:08:41,105 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:41,106 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions.
[2024-09-25 00:08:41,106 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-25 00:08:41,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions.
[2024-09-25 00:08:41,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-09-25 00:08:41,109 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:41,109 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:41,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-25 00:08:41,110 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:41,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:41,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1069801351, now seen corresponding path program 1 times
[2024-09-25 00:08:41,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:41,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487839988]
[2024-09-25 00:08:41,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:41,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,205 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:41,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,214 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-25 00:08:41,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:41,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487839988]
[2024-09-25 00:08:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487839988] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-25 00:08:41,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-25 00:08:41,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-25 00:08:41,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569074950]
[2024-09-25 00:08:41,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-25 00:08:41,264 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-25 00:08:41,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:41,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-25 00:08:41,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 00:08:41,265 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-25 00:08:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:41,336 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions.
[2024-09-25 00:08:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-25 00:08:41,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 14
[2024-09-25 00:08:41,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:41,338 INFO L225 Difference]: With dead ends: 27
[2024-09-25 00:08:41,339 INFO L226 Difference]: Without dead ends: 23
[2024-09-25 00:08:41,339 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-25 00:08:41,341 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:41,341 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:41,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-09-25 00:08:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21.
[2024-09-25 00:08:41,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6)
[2024-09-25 00:08:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions.
[2024-09-25 00:08:41,355 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 14
[2024-09-25 00:08:41,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:41,355 INFO L474 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions.
[2024-09-25 00:08:41,357 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-09-25 00:08:41,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions.
[2024-09-25 00:08:41,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-09-25 00:08:41,358 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:41,358 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:41,359 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-25 00:08:41,359 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:41,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:41,360 INFO L85 PathProgramCache]: Analyzing trace with hash -648535868, now seen corresponding path program 1 times
[2024-09-25 00:08:41,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:41,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669737073]
[2024-09-25 00:08:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,467 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:41,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:41,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2024-09-25 00:08:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,605 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 00:08:41,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:41,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669737073]
[2024-09-25 00:08:41,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669737073] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:41,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309100351]
[2024-09-25 00:08:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:41,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:41,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:41,609 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)
[2024-09-25 00:08:41,611 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-25 00:08:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:41,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:41,691 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:41,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2024-09-25 00:08:41,782 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-09-25 00:08:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309100351] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:42,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:42,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 12
[2024-09-25 00:08:42,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176441991]
[2024-09-25 00:08:42,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:42,045 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-09-25 00:08:42,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:42,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-09-25 00:08:42,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132
[2024-09-25 00:08:42,047 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9)
[2024-09-25 00:08:42,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:42,144 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions.
[2024-09-25 00:08:42,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-25 00:08:42,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9) Word has length 26
[2024-09-25 00:08:42,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:42,145 INFO L225 Difference]: With dead ends: 38
[2024-09-25 00:08:42,145 INFO L226 Difference]: Without dead ends: 23
[2024-09-25 00:08:42,146 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182
[2024-09-25 00:08:42,147 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:42,147 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 45 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:42,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2024-09-25 00:08:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2024-09-25 00:08:42,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)
[2024-09-25 00:08:42,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions.
[2024-09-25 00:08:42,155 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26
[2024-09-25 00:08:42,155 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:42,155 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions.
[2024-09-25 00:08:42,155 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 12 states have internal predecessors, (30), 8 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 8 states have call successors, (9)
[2024-09-25 00:08:42,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:42,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions.
[2024-09-25 00:08:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-09-25 00:08:42,157 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:42,157 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:42,170 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-25 00:08:42,358 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
[2024-09-25 00:08:42,358 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:42,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:42,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1169471199, now seen corresponding path program 1 times
[2024-09-25 00:08:42,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:42,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561916162]
[2024-09-25 00:08:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:42,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,422 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:42,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,509 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,542 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,555 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-09-25 00:08:42,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561916162]
[2024-09-25 00:08:42,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561916162] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:42,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229921753]
[2024-09-25 00:08:42,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:42,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:42,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:42,560 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)
[2024-09-25 00:08:42,564 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-25 00:08:42,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:42,604 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:42,605 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:42,644 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-09-25 00:08:42,647 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:42,834 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-09-25 00:08:42,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229921753] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:42,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:42,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 11
[2024-09-25 00:08:42,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119198336]
[2024-09-25 00:08:42,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:42,839 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-09-25 00:08:42,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:42,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-09-25 00:08:42,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110
[2024-09-25 00:08:42,840 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2024-09-25 00:08:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:42,951 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions.
[2024-09-25 00:08:42,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-09-25 00:08:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Word has length 27
[2024-09-25 00:08:42,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:42,954 INFO L225 Difference]: With dead ends: 41
[2024-09-25 00:08:42,955 INFO L226 Difference]: Without dead ends: 37
[2024-09-25 00:08:42,956 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2024-09-25 00:08:42,957 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 21 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:42,958 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 83 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:42,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2024-09-25 00:08:42,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2024-09-25 00:08:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 24 states have internal predecessors, (26), 8 states have call successors, (8), 4 states have call predecessors, (8), 6 states have return successors, (17), 8 states have call predecessors, (17), 7 states have call successors, (17)
[2024-09-25 00:08:42,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions.
[2024-09-25 00:08:42,971 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 27
[2024-09-25 00:08:42,971 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:42,971 INFO L474 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions.
[2024-09-25 00:08:42,971 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.111111111111111) internal successors, (28), 11 states have internal predecessors, (28), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8)
[2024-09-25 00:08:42,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:42,972 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions.
[2024-09-25 00:08:42,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2024-09-25 00:08:42,985 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:42,986 INFO L216 NwaCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:43,001 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-09-25 00:08:43,190 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:43,191 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:43,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:43,192 INFO L85 PathProgramCache]: Analyzing trace with hash 413055705, now seen corresponding path program 2 times
[2024-09-25 00:08:43,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:43,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527766901]
[2024-09-25 00:08:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:43,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,249 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,254 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,361 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,383 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-09-25 00:08:43,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:43,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527766901]
[2024-09-25 00:08:43,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527766901] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:43,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827458426]
[2024-09-25 00:08:43,384 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-25 00:08:43,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:43,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:43,386 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)
[2024-09-25 00:08:43,388 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-25 00:08:43,434 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-25 00:08:43,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:08:43,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:43,437 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-09-25 00:08:43,541 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:43,897 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-09-25 00:08:43,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827458426] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:43,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:43,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 9] total 17
[2024-09-25 00:08:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466323385]
[2024-09-25 00:08:43,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:43,898 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-09-25 00:08:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-09-25 00:08:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272
[2024-09-25 00:08:43,900 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14)
[2024-09-25 00:08:44,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:44,103 INFO L93 Difference]: Finished difference Result 72 states and 109 transitions.
[2024-09-25 00:08:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2024-09-25 00:08:44,104 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14) Word has length 40
[2024-09-25 00:08:44,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:44,106 INFO L225 Difference]: With dead ends: 72
[2024-09-25 00:08:44,106 INFO L226 Difference]: Without dead ends: 41
[2024-09-25 00:08:44,107 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 84 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=138, Invalid=368, Unknown=0, NotChecked=0, Total=506
[2024-09-25 00:08:44,108 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 41 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:44,111 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 91 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:44,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2024-09-25 00:08:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2024-09-25 00:08:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 26 states have internal predecessors, (30), 7 states have call successors, (7), 6 states have call predecessors, (7), 6 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12)
[2024-09-25 00:08:44,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions.
[2024-09-25 00:08:44,126 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 40
[2024-09-25 00:08:44,127 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:44,127 INFO L474 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions.
[2024-09-25 00:08:44,127 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.933333333333333) internal successors, (44), 17 states have internal predecessors, (44), 10 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (14), 7 states have call predecessors, (14), 10 states have call successors, (14)
[2024-09-25 00:08:44,128 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:44,128 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions.
[2024-09-25 00:08:44,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-09-25 00:08:44,130 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:44,130 INFO L216 NwaCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:44,149 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-09-25 00:08:44,330 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:44,331 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:44,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:44,331 INFO L85 PathProgramCache]: Analyzing trace with hash -926093039, now seen corresponding path program 3 times
[2024-09-25 00:08:44,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:44,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168096321]
[2024-09-25 00:08:44,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:44,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:44,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:44,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,671 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,678 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:44,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,684 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:44,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,693 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:44,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,698 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 88 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked.
[2024-09-25 00:08:44,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:44,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168096321]
[2024-09-25 00:08:44,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168096321] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:44,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145832183]
[2024-09-25 00:08:44,699 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-09-25 00:08:44,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:44,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:44,701 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)
[2024-09-25 00:08:44,703 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-09-25 00:08:44,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s)
[2024-09-25 00:08:44,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:08:44,753 INFO L262 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:44,756 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 66 proven. 25 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-09-25 00:08:44,804 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:45,167 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 68 proven. 30 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked.
[2024-09-25 00:08:45,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145832183] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:45,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:45,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 16
[2024-09-25 00:08:45,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506147269]
[2024-09-25 00:08:45,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:45,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-09-25 00:08:45,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:45,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-09-25 00:08:45,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240
[2024-09-25 00:08:45,170 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18)
[2024-09-25 00:08:45,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:45,354 INFO L93 Difference]: Finished difference Result 83 states and 114 transitions.
[2024-09-25 00:08:45,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-09-25 00:08:45,355 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) Word has length 68
[2024-09-25 00:08:45,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:45,360 INFO L225 Difference]: With dead ends: 83
[2024-09-25 00:08:45,362 INFO L226 Difference]: Without dead ends: 79
[2024-09-25 00:08:45,362 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 148 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272
[2024-09-25 00:08:45,363 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 32 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:45,367 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 109 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-25 00:08:45,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2024-09-25 00:08:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73.
[2024-09-25 00:08:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.148936170212766) internal successors, (54), 46 states have internal predecessors, (54), 15 states have call successors, (15), 8 states have call predecessors, (15), 10 states have return successors, (32), 18 states have call predecessors, (32), 14 states have call successors, (32)
[2024-09-25 00:08:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 101 transitions.
[2024-09-25 00:08:45,393 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 101 transitions. Word has length 68
[2024-09-25 00:08:45,394 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:45,395 INFO L474 AbstractCegarLoop]: Abstraction has 73 states and 101 transitions.
[2024-09-25 00:08:45,396 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 16 states have internal predecessors, (44), 11 states have call successors, (16), 1 states have call predecessors, (16), 5 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18)
[2024-09-25 00:08:45,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:45,397 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 101 transitions.
[2024-09-25 00:08:45,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110
[2024-09-25 00:08:45,402 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:45,402 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:45,423 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-09-25 00:08:45,602 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:45,603 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:45,603 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:45,604 INFO L85 PathProgramCache]: Analyzing trace with hash -257182465, now seen corresponding path program 4 times
[2024-09-25 00:08:45,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:45,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105197016]
[2024-09-25 00:08:45,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:45,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:45,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:45,753 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:45,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:45,756 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:45,900 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:45,992 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,037 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:46,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:46,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,108 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:46,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,113 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,135 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,141 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,145 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked.
[2024-09-25 00:08:46,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105197016]
[2024-09-25 00:08:46,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105197016] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:46,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [332995923]
[2024-09-25 00:08:46,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2024-09-25 00:08:46,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:46,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:46,150 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)
[2024-09-25 00:08:46,152 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-09-25 00:08:46,215 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2024-09-25 00:08:46,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:08:46,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:46,220 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:46,293 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 229 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked.
[2024-09-25 00:08:46,294 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 255 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked.
[2024-09-25 00:08:47,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [332995923] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:47,182 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:47,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 13] total 20
[2024-09-25 00:08:47,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118298509]
[2024-09-25 00:08:47,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:47,185 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2024-09-25 00:08:47,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:47,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2024-09-25 00:08:47,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380
[2024-09-25 00:08:47,187 INFO L87 Difference]: Start difference. First operand 73 states and 101 transitions. Second operand has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25)
[2024-09-25 00:08:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:47,398 INFO L93 Difference]: Finished difference Result 150 states and 231 transitions.
[2024-09-25 00:08:47,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-09-25 00:08:47,399 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25) Word has length 109
[2024-09-25 00:08:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:47,403 INFO L225 Difference]: With dead ends: 150
[2024-09-25 00:08:47,403 INFO L226 Difference]: Without dead ends: 146
[2024-09-25 00:08:47,404 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 238 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420
[2024-09-25 00:08:47,405 INFO L434 NwaCegarLoop]: 21 mSDtfsCounter, 58 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:47,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 110 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-25 00:08:47,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states.
[2024-09-25 00:08:47,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 137.
[2024-09-25 00:08:47,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 87 states have (on average 1.1724137931034482) internal successors, (102), 86 states have internal predecessors, (102), 31 states have call successors, (31), 12 states have call predecessors, (31), 18 states have return successors, (81), 38 states have call predecessors, (81), 30 states have call successors, (81)
[2024-09-25 00:08:47,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 214 transitions.
[2024-09-25 00:08:47,446 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 214 transitions. Word has length 109
[2024-09-25 00:08:47,446 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:47,447 INFO L474 AbstractCegarLoop]: Abstraction has 137 states and 214 transitions.
[2024-09-25 00:08:47,447 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.0) internal successors, (54), 20 states have internal predecessors, (54), 17 states have call successors, (20), 1 states have call predecessors, (20), 6 states have return successors, (25), 10 states have call predecessors, (25), 17 states have call successors, (25)
[2024-09-25 00:08:47,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:47,447 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 214 transitions.
[2024-09-25 00:08:47,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-09-25 00:08:47,451 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:47,451 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 25, 15, 15, 15, 15, 15, 15, 15, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:47,465 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-09-25 00:08:47,655 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-09-25 00:08:47,656 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:47,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:47,656 INFO L85 PathProgramCache]: Analyzing trace with hash -2056076178, now seen corresponding path program 5 times
[2024-09-25 00:08:47,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:47,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134666320]
[2024-09-25 00:08:47,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:47,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:47,899 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:47,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:47,902 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,155 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,248 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,370 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,405 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,461 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,465 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-09-25 00:08:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,572 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,641 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,643 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,648 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:48,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,649 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,710 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,714 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,718 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:48,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,729 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,735 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,737 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 403 proven. 706 refuted. 0 times theorem prover too weak. 1471 trivial. 0 not checked.
[2024-09-25 00:08:48,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:48,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134666320]
[2024-09-25 00:08:48,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134666320] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:48,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220605554]
[2024-09-25 00:08:48,740 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2024-09-25 00:08:48,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:48,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:48,742 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 00:08:48,744 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-09-25 00:08:48,861 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s)
[2024-09-25 00:08:48,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:08:48,863 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:48,867 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:49,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 630 proven. 586 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked.
[2024-09-25 00:08:49,022 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:50,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2580 backedges. 634 proven. 619 refuted. 0 times theorem prover too weak. 1327 trivial. 0 not checked.
[2024-09-25 00:08:50,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220605554] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:50,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:50,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 14, 21] total 33
[2024-09-25 00:08:50,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108512834]
[2024-09-25 00:08:50,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:50,744 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-09-25 00:08:50,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-09-25 00:08:50,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056
[2024-09-25 00:08:50,747 INFO L87 Difference]: Start difference. First operand 137 states and 214 transitions. Second operand has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43)
[2024-09-25 00:08:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:51,199 INFO L93 Difference]: Finished difference Result 229 states and 428 transitions.
[2024-09-25 00:08:51,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states.
[2024-09-25 00:08:51,200 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43) Word has length 218
[2024-09-25 00:08:51,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:51,203 INFO L225 Difference]: With dead ends: 229
[2024-09-25 00:08:51,203 INFO L226 Difference]: Without dead ends: 101
[2024-09-25 00:08:51,207 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 478 SyntacticMatches, 10 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 853 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=641, Invalid=1909, Unknown=0, NotChecked=0, Total=2550
[2024-09-25 00:08:51,208 INFO L434 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:51,208 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 204 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-09-25 00:08:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states.
[2024-09-25 00:08:51,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 87.
[2024-09-25 00:08:51,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 60 states have (on average 1.0333333333333334) internal successors, (62), 58 states have internal predecessors, (62), 17 states have call successors, (17), 14 states have call predecessors, (17), 9 states have return successors, (37), 14 states have call predecessors, (37), 16 states have call successors, (37)
[2024-09-25 00:08:51,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 116 transitions.
[2024-09-25 00:08:51,228 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 116 transitions. Word has length 218
[2024-09-25 00:08:51,228 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:51,228 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 116 transitions.
[2024-09-25 00:08:51,229 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.84375) internal successors, (91), 33 states have internal predecessors, (91), 25 states have call successors, (33), 1 states have call predecessors, (33), 12 states have return successors, (43), 20 states have call predecessors, (43), 25 states have call successors, (43)
[2024-09-25 00:08:51,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 116 transitions.
[2024-09-25 00:08:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287
[2024-09-25 00:08:51,233 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:51,233 INFO L216 NwaCegarLoop]: trace histogram [41, 41, 33, 20, 20, 20, 20, 20, 20, 20, 13, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:51,252 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-09-25 00:08:51,434 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:51,434 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:51,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:51,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1181858135, now seen corresponding path program 6 times
[2024-09-25 00:08:51,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:51,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738019392]
[2024-09-25 00:08:51,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:51,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:53,264 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:53,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:53,276 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,195 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,592 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,775 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,872 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,942 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:54,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,000 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,029 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,059 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,131 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,159 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,167 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:55,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,210 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-09-25 00:08:55,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,463 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,481 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2024-09-25 00:08:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,696 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,755 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,767 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,773 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,783 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,803 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,812 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,823 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:55,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,855 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,877 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:55,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,896 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:55,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked.
[2024-09-25 00:08:55,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:08:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738019392]
[2024-09-25 00:08:55,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738019392] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:08:55,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518403039]
[2024-09-25 00:08:55,925 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2024-09-25 00:08:55,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:55,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:08:55,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 00:08:55,930 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-09-25 00:08:56,116 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 41 check-sat command(s)
[2024-09-25 00:08:56,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:08:56,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 167 conjuncts are in the unsatisfiable core
[2024-09-25 00:08:56,135 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:08:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked.
[2024-09-25 00:08:56,499 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:08:57,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4568 backedges. 0 proven. 1500 refuted. 0 times theorem prover too weak. 3068 trivial. 0 not checked.
[2024-09-25 00:08:57,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518403039] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:08:57,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:08:57,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 28
[2024-09-25 00:08:57,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075269308]
[2024-09-25 00:08:57,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:08:57,962 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-09-25 00:08:57,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:08:57,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-09-25 00:08:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756
[2024-09-25 00:08:57,966 INFO L87 Difference]: Start difference. First operand 87 states and 116 transitions. Second operand has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19)
[2024-09-25 00:08:58,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:08:58,285 INFO L93 Difference]: Finished difference Result 108 states and 158 transitions.
[2024-09-25 00:08:58,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2024-09-25 00:08:58,286 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19) Word has length 286
[2024-09-25 00:08:58,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:08:58,288 INFO L225 Difference]: With dead ends: 108
[2024-09-25 00:08:58,288 INFO L226 Difference]: Without dead ends: 104
[2024-09-25 00:08:58,289 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 740 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=691, Unknown=0, NotChecked=0, Total=756
[2024-09-25 00:08:58,289 INFO L434 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-09-25 00:08:58,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 793 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-09-25 00:08:58,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states.
[2024-09-25 00:08:58,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 97.
[2024-09-25 00:08:58,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 64 states have internal predecessors, (68), 19 states have call successors, (19), 14 states have call predecessors, (19), 11 states have return successors, (55), 18 states have call predecessors, (55), 18 states have call successors, (55)
[2024-09-25 00:08:58,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 142 transitions.
[2024-09-25 00:08:58,324 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 142 transitions. Word has length 286
[2024-09-25 00:08:58,325 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:08:58,325 INFO L474 AbstractCegarLoop]: Abstraction has 97 states and 142 transitions.
[2024-09-25 00:08:58,325 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (9), 1 states have call predecessors, (9), 8 states have return successors, (19), 19 states have call predecessors, (19), 6 states have call successors, (19)
[2024-09-25 00:08:58,325 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:58,326 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 142 transitions.
[2024-09-25 00:08:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355
[2024-09-25 00:08:58,333 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:08:58,334 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:08:58,353 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-09-25 00:08:58,537 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:08:58,538 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:08:58,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:08:58,539 INFO L85 PathProgramCache]: Analyzing trace with hash 2079867300, now seen corresponding path program 7 times
[2024-09-25 00:08:58,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:08:58,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673406722]
[2024-09-25 00:08:58,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:08:58,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:08:58,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:58,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:08:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:58,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:08:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,192 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,338 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,530 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,545 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,549 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:59,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,552 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,558 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,574 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,579 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-09-25 00:08:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,602 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2024-09-25 00:08:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,771 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,905 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,911 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,914 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,916 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,917 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,919 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:08:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,972 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,975 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,978 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:08:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,989 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:08:59,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,991 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:08:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,993 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:08:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:08:59,994 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-09-25 00:08:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,008 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,012 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,015 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:00,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,018 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:00,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,019 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:09:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,022 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:00,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 844 proven. 1612 refuted. 0 times theorem prover too weak. 4664 trivial. 0 not checked.
[2024-09-25 00:09:00,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:09:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673406722]
[2024-09-25 00:09:00,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673406722] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:09:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568404340]
[2024-09-25 00:09:00,028 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2024-09-25 00:09:00,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:09:00,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:09:00,030 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 00:09:00,032 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-09-25 00:09:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:00,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-09-25 00:09:00,210 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:09:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1111 proven. 600 refuted. 0 times theorem prover too weak. 5409 trivial. 0 not checked.
[2024-09-25 00:09:00,334 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:09:02,547 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 1111 proven. 651 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked.
[2024-09-25 00:09:02,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568404340] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:09:02,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:09:02,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 11, 17] total 35
[2024-09-25 00:09:02,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18838343]
[2024-09-25 00:09:02,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:09:02,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2024-09-25 00:09:02,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:09:02,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2024-09-25 00:09:02,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=912, Unknown=0, NotChecked=0, Total=1190
[2024-09-25 00:09:02,551 INFO L87 Difference]: Start difference. First operand 97 states and 142 transitions. Second operand has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44)
[2024-09-25 00:09:03,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:09:03,143 INFO L93 Difference]: Finished difference Result 230 states and 452 transitions.
[2024-09-25 00:09:03,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states.
[2024-09-25 00:09:03,144 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44) Word has length 354
[2024-09-25 00:09:03,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:09:03,147 INFO L225 Difference]: With dead ends: 230
[2024-09-25 00:09:03,147 INFO L226 Difference]: Without dead ends: 127
[2024-09-25 00:09:03,150 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 858 GetRequests, 794 SyntacticMatches, 8 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=759, Invalid=2547, Unknown=0, NotChecked=0, Total=3306
[2024-09-25 00:09:03,150 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 165 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-09-25 00:09:03,151 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 209 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-09-25 00:09:03,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states.
[2024-09-25 00:09:03,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 113.
[2024-09-25 00:09:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 78 states have (on average 1.0256410256410255) internal successors, (80), 76 states have internal predecessors, (80), 23 states have call successors, (23), 18 states have call predecessors, (23), 11 states have return successors, (47), 18 states have call predecessors, (47), 22 states have call successors, (47)
[2024-09-25 00:09:03,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 150 transitions.
[2024-09-25 00:09:03,166 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 150 transitions. Word has length 354
[2024-09-25 00:09:03,166 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:09:03,166 INFO L474 AbstractCegarLoop]: Abstraction has 113 states and 150 transitions.
[2024-09-25 00:09:03,167 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 35 states have internal predecessors, (87), 24 states have call successors, (31), 1 states have call predecessors, (31), 15 states have return successors, (44), 25 states have call predecessors, (44), 24 states have call successors, (44)
[2024-09-25 00:09:03,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:09:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 150 transitions.
[2024-09-25 00:09:03,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355
[2024-09-25 00:09:03,172 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-25 00:09:03,172 INFO L216 NwaCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-25 00:09:03,190 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-09-25 00:09:03,372 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:09:03,373 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-25 00:09:03,374 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:09:03,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1239419108, now seen corresponding path program 8 times
[2024-09-25 00:09:03,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-25 00:09:03,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145898037]
[2024-09-25 00:09:03,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-25 00:09:03,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-25 00:09:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:03,666 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-25 00:09:03,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:03,668 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5
[2024-09-25 00:09:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:03,943 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,138 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,240 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,303 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,335 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,348 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:09:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:09:04,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,407 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,411 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2024-09-25 00:09:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,431 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,434 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:09:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,443 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173
[2024-09-25 00:09:04,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,487 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,523 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,555 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,577 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:09:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,587 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241
[2024-09-25 00:09:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,604 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,612 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,618 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,625 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,627 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2024-09-25 00:09:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,631 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-09-25 00:09:04,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,644 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2024-09-25 00:09:04,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,646 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2024-09-25 00:09:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,647 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2024-09-25 00:09:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,652 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 913 proven. 1281 refuted. 0 times theorem prover too weak. 4926 trivial. 0 not checked.
[2024-09-25 00:09:04,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-25 00:09:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145898037]
[2024-09-25 00:09:04,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145898037] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-25 00:09:04,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174403509]
[2024-09-25 00:09:04,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-25 00:09:04,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-25 00:09:04,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-25 00:09:04,656 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-25 00:09:04,658 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-09-25 00:09:04,889 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-25 00:09:04,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-25 00:09:04,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 18 conjuncts are in the unsatisfiable core
[2024-09-25 00:09:04,920 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-25 00:09:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1507 refuted. 0 times theorem prover too weak. 5194 trivial. 0 not checked.
[2024-09-25 00:09:05,076 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-25 00:09:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 419 proven. 1577 refuted. 0 times theorem prover too weak. 5124 trivial. 0 not checked.
[2024-09-25 00:09:07,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174403509] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-25 00:09:07,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-25 00:09:07,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 12, 19] total 33
[2024-09-25 00:09:07,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786376738]
[2024-09-25 00:09:07,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-25 00:09:07,861 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 33 states
[2024-09-25 00:09:07,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-25 00:09:07,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants.
[2024-09-25 00:09:07,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=807, Unknown=0, NotChecked=0, Total=1056
[2024-09-25 00:09:07,864 INFO L87 Difference]: Start difference. First operand 113 states and 150 transitions. Second operand has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44)
[2024-09-25 00:09:08,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-25 00:09:08,268 INFO L93 Difference]: Finished difference Result 214 states and 297 transitions.
[2024-09-25 00:09:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-09-25 00:09:08,268 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44) Word has length 354
[2024-09-25 00:09:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-25 00:09:08,270 INFO L225 Difference]: With dead ends: 214
[2024-09-25 00:09:08,270 INFO L226 Difference]: Without dead ends: 0
[2024-09-25 00:09:08,272 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 843 GetRequests, 792 SyntacticMatches, 9 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 699 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=469, Invalid=1423, Unknown=0, NotChecked=0, Total=1892
[2024-09-25 00:09:08,272 INFO L434 NwaCegarLoop]: 39 mSDtfsCounter, 54 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-09-25 00:09:08,273 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 236 Invalid, 628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-09-25 00:09:08,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-25 00:09:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-25 00:09:08,273 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)
[2024-09-25 00:09:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-25 00:09:08,274 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 354
[2024-09-25 00:09:08,274 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-25 00:09:08,274 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-25 00:09:08,275 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.71875) internal successors, (87), 33 states have internal predecessors, (87), 26 states have call successors, (31), 1 states have call predecessors, (31), 14 states have return successors, (44), 20 states have call predecessors, (44), 26 states have call successors, (44)
[2024-09-25 00:09:08,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-25 00:09:08,275 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-25 00:09:08,275 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-25 00:09:08,278 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-25 00:09:08,292 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-09-25 00:09:08,479 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-09-25 00:09:08,482 INFO L408 BasicCegarLoop]: Path program histogram: [8, 1, 1, 1]
[2024-09-25 00:09:08,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-25 00:09:10,928 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-25 00:09:10,959 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
[2024-09-25 00:09:10,962 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 12:09:10 BoogieIcfgContainer
[2024-09-25 00:09:10,962 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-25 00:09:10,962 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-25 00:09:10,963 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-25 00:09:10,963 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-25 00:09:10,963 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:08:40" (3/4) ...
[2024-09-25 00:09:10,965 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-09-25 00:09:11,016 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-25 00:09:11,016 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-25 00:09:11,017 INFO L158 Benchmark]: Toolchain (without parser) took 31185.27ms. Allocated memory was 153.1MB in the beginning and 559.9MB in the end (delta: 406.8MB). Free memory was 85.8MB in the beginning and 221.0MB in the end (delta: -135.3MB). Peak memory consumption was 273.6MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,017 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 00:09:11,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.31ms. Allocated memory is still 153.1MB. Free memory was 128.0MB in the beginning and 116.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.46ms. Allocated memory is still 153.1MB. Free memory was 116.9MB in the beginning and 115.9MB in the end (delta: 969.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-25 00:09:11,018 INFO L158 Benchmark]: Boogie Preprocessor took 40.08ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,018 INFO L158 Benchmark]: RCFGBuilder took 252.24ms. Allocated memory is still 153.1MB. Free memory was 114.2MB in the beginning and 102.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,019 INFO L158 Benchmark]: TraceAbstraction took 30504.52ms. Allocated memory was 153.1MB in the beginning and 559.9MB in the end (delta: 406.8MB). Free memory was 101.7MB in the beginning and 223.1MB in the end (delta: -121.4MB). Peak memory consumption was 315.7MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,019 INFO L158 Benchmark]: Witness Printer took 53.80ms. Allocated memory is still 559.9MB. Free memory was 223.1MB in the beginning and 221.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-25 00:09:11,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.58ms. Allocated memory is still 109.1MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 286.31ms. Allocated memory is still 153.1MB. Free memory was 128.0MB in the beginning and 116.9MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 25.46ms. Allocated memory is still 153.1MB. Free memory was 116.9MB in the beginning and 115.9MB in the end (delta: 969.7kB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 40.08ms. Allocated memory is still 153.1MB. Free memory was 115.9MB in the beginning and 114.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 252.24ms. Allocated memory is still 153.1MB. Free memory was 114.2MB in the beginning and 102.3MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 30504.52ms. Allocated memory was 153.1MB in the beginning and 559.9MB in the end (delta: 406.8MB). Free memory was 101.7MB in the beginning and 223.1MB in the end (delta: -121.4MB). Peak memory consumption was 315.7MB. Max. memory is 16.1GB.
* Witness Printer took 53.80ms. Allocated memory is still 559.9MB. Free memory was 223.1MB in the beginning and 221.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression
* 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: 29]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.0s, OverallIterations: 11, TraceHistogramMax: 51, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.1s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 568 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 515 mSDsluCounter, 1979 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1699 mSDsCounter, 533 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2703 IncrementalHoareTripleChecker+Invalid, 3236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 533 mSolverCounterUnsat, 280 mSDtfsCounter, 2703 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3668 GetRequests, 3370 SyntacticMatches, 42 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3166 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=7, InterpolantAutomatonStates: 178, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 54 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 21.5s InterpolantComputationTime, 2991 NumberOfCodeBlocks, 2908 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 4444 ConstructedInterpolants, 0 QuantifiedInterpolants, 7930 SizeOfPredicates, 33 NumberOfNonLiveVariables, 3230 ConjunctsInSsa, 261 ConjunctsInUnsatCore, 29 InterpolantComputations, 2 PerfectInterpolantSequences, 52070/66657 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
1 specifications checked. All of them hold
- ProcedureContractResult [Line: 7]: Procedure Contract for fibo
Derived contract for procedure fibo. Ensures: ((0 < n) || (\result == 0))
RESULT: Ultimate proved your program to be correct!
[2024-09-25 00:09:11,052 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE